14 best indoor air quality monitors

• 🏠【Know Your Air】YVELINES 2021 Newest Indoor Air Quality Monitor built in DART Electrochemical Sensors will provide you trustworthy measurements such as air of Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10).Those readings involve detection of toluene, harmful chemical substances and pollutants in the air such as carbon dioxide, carbon monoxide,smoke,fog,dust,alcohol,glue,paint,ink and others.
• 🏠【2021 Newly Design】2021 Newly design placement air monitor built with LCD Color Screen Digital Display. This air monitor is easy to operate which just pressing the functional button and one full page design make everyone can easy to read all the real time readings at the same time. It also can offer mean value for each air and overall environment quality color indication which will let you know you need to take some actions if you air is unsafe.
• 🏠【Rechargeable Battery】 YVELINES Air Quality Tester has a 2000mAn rechargeable lithium battery and packed with USB cable that can last up to 8 hours. Built-in low power consumption processing chip, can carry on long time uninterrupted monitoring to air quality. It will always take care of you and your family health.
• 🏠【Your Health Assistant】YVELINES Air Monitor can detect CO2 Formaldehyde HCHO/TVOC and PM2.5/PM10 real time gas monitoring. Size about 4.98" * 3.14" * 1.93" It's easy to carry the intelligent air quality monitor that can help us detect the air quality in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman.
• 🏠【Kindly Note】Please be aware this air quality monitor is for home indoor place. We do recommend using the monitor as a stationary unit and focus on 30 and 60 minute mean values and overall environment quality indication because long-term monitoring, the real-time data exist instability. If you have any questions regarding monitor functionality or you need any assistance on how to re-calibrate the sensors, please contact us via email; we will always be your site.

User questions & answers

Question:	Is the data from this test accurate
Answer:	PM2.5 is still relatively accurate, HCHO and TVOC are also OK.
Question:	Is there a global warranty? Can I return it if it is inaccurate
Answer:	The brochure only says that the manufacturer offers a warranty for one year. It invites you to email them through the Amazon buyer email box for warranty details.
Question:	Can this unit yvelines air quality tester be set up to be plugged in to ac wall electricity for continuous use
Answer:	The directions included with the unit advise against keeping the unit plugged in.
Question:	Is the hcho sensor a semiconductor tvoc sensor? not a chemical hcho sensor
Answer:	No, but it is still accurate, and it will also alarm for perfumes.

Product features

LCD Color Display Screen

Easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication so that it is very convenient for you to check different value. The all values are display in whole one screen. And it also offer each value's mean result, you just need to see the environment which color flicker. CO2 Formaldehyde HCHO/TVOC and PM2.5/PM10 real time gas monitoring to let you know air quaility. It can help us detect the air gas we can not feel or underestimate,designs key in household,office,school,car,etc...especially in which has baby,child,pregnant woman and the old.

2000mAn Rechargeable Battery

YVELINES Newly handheld air monitor built with a 2000mAn polymer lithium battery can be used continuously for 8-12 hours after full charging, which is a good solution for your testing needs in different environment for a long time.

DART Electrochemical Sensor Technology

YVELINES Air Quality Monitor is designed by the DART Electrochemical Sensor technology with combination of factory testing, calibration and ISO compliance will provide you trustworthy measurements. As well as a high resolution in CO2 HCHO/TVOC values will shows you the slightest fluctuations in the air quality. It allows you to take timely measures to keep the air quality within safe levels on Home/Office/School/Car and various occasions.

CO2

What is CO2?

Carbon dioxide (carbon dioxide), a carbon oxide compound with the chemical formula CO2, is a colorless, odorless, colorless,odorless (no smell) but slightly acidic gas at

normal temperature and pressure, and is also a common greenhouse and a component of air.

How to deal it?

1. Ventilate and detoxify 2. wear a ventilation mask

HCHO

What is HCHO?

Formaldehyde, colorless and irritating gas, chemical formula HCHO or CH2O, molecular weight 30.00, also known as antaldehyde. Colorless, irritating to human eyes and nose.

How to deal it?

1. Ventilation method 2. Deodorization

TVOC

What is TVOC?

Indoor air quality researchers usually refer to all indoor organic gaseous substances they

sample and analyze as TVOC.

How to deal it?

1. Do not use non-environmental-friendly building materials. 2. Ventilate and even heat and bake to accelerate the release of TVOC. 3. Placed rose, lily and gorilla in living room.

PM2.5/PM10

What is PM2.5/PM10?

*Fine particles are also called fine particles, fine particles, PM2.5.

*Usually refers to particulate matter with a particle size below 10 microns, also known as PM10.

How to deal it?

1. Filter method 2. Water adsorption method 3. Plant absorption method

Recommended methods to control harmful substances:

• Air purifier
• Activated carbon absorption
• Buy a regular air purifier
• Natural ventilation
• Cleaning
• Elimination of pollution sources

Product description

Everyday activities and household products can cause your indoor air quality to be up to five times more polluted than outdoor air Awair Element monitors temperature humidity carbon dioxide (CO2) chemicals (VOCs) and particulate matter (PM2. 5) and gives you real-time insight into your air quality Whether you’re looking to improve your sleep quality gain relief from indoor allergy symptoms manage eczema and asthma triggers or protect your health Element can give you the insight you need to create a healthier environment.

• KNOW YOUR AIR - Track temperature, humidity, carbon dioxide (CO2), chemicals (VOCs), and particulate matter (PM2. 5) in your space
• GAIN ACTIONABLE INSIGHT - Receive real-time insight into your indoor air quality and track changes over time in the Awair Home app
• TRANSFORM YOUR ENVIRONMENT - Browse in-app feedback and tips to improve the health of your space
• SMART ASSISTANT INTEGRATIONS - Seamlessly integrate Element with Alexa or Google Assistant
• WI-FI CONNECTED DEVICE - Awair Element requires Bluetooth (for setup) and a 2.4 GHz Wi-Fi Connection.
• FREE AWAIR HOME APP - App works on smartphones or tablets with the latest versions of iOS or Android

User questions & answers

Question:	Will this detect secondhand cigarette smoke
Answer:	It will detect smoke from my cooking, but not my neighbor's cooking. I haven't tried it with cigarette smoke, but if the smoke is close enough to the device, say within 10 feet, I think it will.
Question:	Will this detect leaking gas from a stove or heating unit
Answer:	No > You need a Carbon Monoxide detector for that. < That is a safety device you should have just like a smoke detector. Carbon Monoxide (from faulty stoves or furnace) is much more dangerous at lower ppm. What you get with this air quality monitor is readout on carbon Dioxide, which humans breathe out (and generally is not harmful in low parts per million, but when a house is tight / lots of people together it starts to get stuffy and signals need to open window for fresh air, etc). House Plants can also help process that co2 into oxygen.
Question:	How does it charge, Is it battery operated
Answer:	AC
Question:	How accurate is this product when compared to, say, a fluke
Answer:	I've never used the fluke, but seeing as how it looks like a professional device, I'd say that this device will not give you as accurate a calculation on particulates. It has basically a 1-5 scale for particulates, and only measures pm 2.5 particles. Plus a separate scale for VOCs. I've been using mine for about 2 weeks and see it drop down from an overall score of 100 to about 65 when I cook, but I bought it to detect fumes from my neighbor's cooking, and even though I could clearly smell their smoke, my awair was still registering at a 95, so it didn't really do what I had hoped.

Product features

Live Healthy & Breathe Easy

Track temperature, humidity, CO2, VOCs, and PM2.5 levels in your space, receive recommendations, and transform your home into a clean air oasis.

Customize Feedback

Whether it’s getting better sleep, reducing allergy symptoms, or simply protecting your health, you can customize your Awair Interests to match your goals.

Gain Insight & Guidance

Navigate to the Trend tab in the app to track changes in your air quality, and receive feedback based on current and historical air quality readings.

Monitor More of Your Space

View sensor readings from multiple Awair devices in one smartphone app to uncover how your air quality varies between rooms and locate pollution sources.

Smart Assistant Integrations

Take advantage of Awair’s smart assistant integrations to help you maintain a healthy indoor environment.

Product description

Have you gone nose blind to household odors or dust?

Check multiple measures of your home's air quality. This air quality monitor has a FAN onboard that allows REAL-TIME accurate monitoring of temperature (in C), humidity, formaldehyde (HCHO), total volatile organic compounds (TVOC), and micron-sized fine particulate dust (PM2.5/PM1.0/PM10). Formaldehyde is an environmental carcinogen yet odorless at lower concentrations. Detect low levels of airborne TVOCs not perceivable to the human nose.



Problems with allergies?

See when you need to change your home’s air filter. Watch the levels of indoor total volatile organic compounds and formaldehyde drop when the windows are opened. Learn where air quality is poorer and where your allergies can worsen. Allergies that are difficult to control with unexplained coughing, runny nose, and shortness of breath may be signs of sick building syndrome.



Tips on Use:

-PM2.5 reads in μg/m³, not AQI. Search AirNow AQI calculator online for quick conversion.

-Calibrate on first use, esp. if 0.000 indoor readings noted.

-If the HCHO, temp, or PM2.5 is inaccurate, use the "Sensor Set" Menu found under SET (press D), then SENSOR (press A) to further calibrate device readings.

-Large variations & 9.999 TVOC readings do not indicate an error as this instrument is a sensitive electronic nose; environmental TVOCs vary much and high TVOCs often can result from interference from benign fragrances or odors.

-Air Pollution Level vs. AQI are separate & different assessments of air quality.



Specifications:

-2.8“ color 240 x 320 LCD

-DC 5V USB charging w/ 2-3 hrs battery life

-HCHO: 0-1.999 mg/m³

-TVOC: 0-9.999 mg/m³

-PM1.0/PM2.5/PM10: 0-999 μg/m³

-Multiple user options including continuous monitoring



As the only US based retailer of this item, we have a chemist on staff to answer any technical questions.

• MULTIFUNCTIONAL & SCIENTIFIC – As our newest model, this indoor air quality monitor accurately assesses temperature in Celsius, humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10) which travel deeply into the respiratory tract, reaching the lung alveoli.
• PORTABLE TESTING – Spot check indoor air quality anywhere or leave device on for continuous monitoring. This easy-to-carry air quality tester can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8” 320 x 240 pixel color LCD display.
• ADVANCED FAN & SENSORS – This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to test air quality including formaldehyde and natural/synthetic organic compound levels.
• HEALTHY HOME? – Is your family suffering from sick building syndrome? This air quality tester detects organic compounds like formaldehyde which has suspected links to nasal cancer and lung cancer emitted from many household materials. By measuring particulate pollution, an air pollution monitor can also help you know when asthma may worsen and when to change your home’s air filter.
• ORIGINAL DESIGN & USA BASED SUPPORT – We have Midwest-based technical staff including a chemist to answer any questions you have. Also included will be a 20+ page eBook on Gas and Air Quality Hazards. We have worked with the supplier that holds this air quality detector’s design rights so you can be confident this item is tried and tested.

User questions & answers

Question:	Does anyone know how to get the ebook
Answer:	The eBook should be attached to the email we send to all our customers. Let me know if you don't see it attached to the email sent by us through Amazon's email message service.
Question:	Can this monitor be used for outdoor air quality monitor
Answer:	The monitor can check for outdoor particulate matter (PM2.5) levels; TVOC and HCHO levels are generally negligible outdoors as they are from synthetic sources.
Question:	In testing for formaldehyde & you have a certain product do you place a plastic bag around the product and insert the tester inside
Answer:	That is a very good question: 1. What I would do is place the tester in the bag without any product to get a baseline and then place the item to be tested in the bag for about 1 day to achieve equilibrium. 2. Then you can put the tester in the bag for at least 30 minutes or until readings stabilize. 3. Subtract the tested item reading from the baseline reading to get the formaldehyde emission amount from the tested item. Hope this answers your questions, take care!
Question:	Does this detector work for checking for mold
Answer:	It can check for TVOCs (organic compounds dissolved in air) and PM2.5 (micron dust levels) which can indicate presence of mold but it does not specifically check for concentration of mold spores. Thanks for asking.

• MULTIPLE DETECTABLE GASES - BIAOLING upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10). Those readings involve detection of toluene, harmful chemical substances and pollutants in the air such as carbon dioxide, carbon monoxide,smoke,fog,dust,alcohol,glue,paint,ink and others.
• NEW DESIGN - Newest unique mold and design with LCD Color Screen Digital Display; it can offer mean value for each gas because long-term monitoring, the real-time data exist instability.
• PORTABLE&3000mAh RECHARGEABLE BATTERY - Size about 5.83” * 2.76” * 1.18”. It's easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman. Built with 3000 mAh rechargeable battery and packaged with one USB cable, the standby time can last for 8-12 hours.
• EASY OPEARATION -This air monitor is easy to operate with just pressing the functional button, easy to read numbers and support of an alarm sound will let you know if your air is unsafe and you need to take some actions.
• KINDLY NOTE - Please be aware this air quality monitor is for home indoor place. We do recommend using the monitor as a stationary unit and focus on 30 and 60 minute mean values and overall environment quality indication because long-term monitoring, the real-time data exist instability. If you have any questions regarding monitor functionality or you need any assistance on how to re-calibrate the sensors, Please feel free to contact us by email.

User questions & answers

Question:	I assume this device will detect and display the amount of mold spores in the air
Answer:	The device can check for TVOCs (total organic compounds dissolved in air) and PM2.5 (micron dust levels) which can indicate presence of mold but it does not specifically check for mold spores or identify the type of mold. You would need a more specific mold detection kit that would be sent to a laboratory for mold species identification via microscope.
Question:	Does this unit test for carbon monoxide
Answer:	No, it does not check for CO (carbon monoxide). It only checks for CO2 (carbon dioxide).
Question:	Will this unit measure silica dust ppm? will test satisfy osha new silica rule for construction
Answer:	This product does measure silica dust PPM and certainly can give a good general measure of silica dust PPM. However, I would probably opt for a more expensive professional unit if you need to ensure compliance with OSHA’s Respirable Crystalline Silica Standard for Construction. Hope this answers your questions.
Question:	If I have any questions, how can I contact feeke? For example, how to use or after-sales service
Answer:	This is their contact information. You can go to contact [email protected]. I tried. They replied to me in a short time. It solved my problem perfectly.

Product features

BIAOLING Newly Handheld Air Quality Monitor

Function: Portable handheld air detector of CO2, PM2.5, PM10, HCHO, TVOC and offer each vlaue's environment result. Easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication and support of an mean value will let you know if you air is unsafe and you need to take some actions.

Package Included:

One handheld air quality detector

One USB charging cable

One instruction manual

One gift box

LCD Color Screen

Easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication so that it is very convenient for you to check different value. The all values are display in whole one screen. And it also offer each value's mean result, you just need to see the environment which color flicker. CO2 Formaldehyde HCHO/TVOC and PM2.5/PM10 real time gas monitoring to let you know air quaility. It can help us detect the air gas we can not feel or underestimate,designs key in household,office,school,car,etc...especially in which has baby,child,pregnant woman and the old.

BIAOLING Product Advantages

On the market, most products just can detect formaldehyde, PM2.5, and other normal values; and only can use 3-6 hours after full charging.

Our air detector is a multifunction device that can test below values at the same time: CO2, HCHO, TVOC , PM2.5 and PM10; and with a 3000mAn polymer lithium battery can be used continuously for 10-12 hours after full charging, which is a good solution for your testing needs in different environment for a long time.

DART Electrochemical Sensor Technology

BIAOLING Air Quality Monitor is designed by the DART Electrochemical Sensor technology with combination of factory testing, calibration and ISO compliance will provide you trustworthy measurements. As well as a high resolution in CO2 HCHO/TVOC values will shows you the slightest fluctuations in the air quality. It allows you to take timely measures to keep the air quality within safe levels on Home/Office/School/Car and various occasions.

PREVENT SOAKING

Please do not put it in the bathroom or place where will be drenched by water.

PREVENT STRONG VIBRATION

Please do not make strong shock and vibration, for example, falling on the floor.

PREVENT ELECTRIC SHOCK

Please do not repair or change the detector to prevent electric shock.

PREVENT CHILDREN FROM TOUCHING

Please put it where children are not in reach to avoid danger

Product description

We spend 90% of our time indoors where the air is often 2 to 5 times worse than the air outside. Continuous monitoring of indoor air quality is key for minimizing negative health effects, preventing illness and increasing productivity, energy and good health. Airthings, air quality specialists and experts in radon, created the Airthings Wave Plus as the first smart air quality monitor with radon detection. Wave Plus has since won multiple awards for consumer electronics and innovation and was among the 2019 TIME Magazine inventions of the year. It is the perfect solution for homeowners to gain full visibility into six indoor air factors; radon, carbon dioxide (CO2), airborne chemicals (TVOCs), humidity, temperature and air pressure. Airthings Wave Plus includes a free app to connect to your smartphone (iOS/Android) via Bluetooth and an online dashboard with advanced analytics. Battery operated allowing you to install anywhere, with 16 months battery life. Please allow for a 7-Day settling period for the sensors to adjust to their new environment. By monitoring daily and continuously, you can avoid radon side effects, get the best indoor humidity level, low voc levels and low carbon dioxide levels. Made to the best indoor air quality standards, Airthings Wave Plus is essential in every home.

• AWARD-WINNING: Wave Plus is an award-winning smart indoor air quality monitor with radon detection. (time magazine's Best Inventions 2019; CES Innovation Award - Honouree 2019)
• RELIABLE RADON RESULTS: As radon levels fluctuate daily, continuous long-term measuring is necessary. Airthings Wave Plus measures radon accurately and reliably
• CLEAN AIR SENSORS: Radon, Carbon Dioxide (CO2), toxins and chemicals (Total VOCs), humidity, temperature and air pressure sensors allow you to gain full visibility into six key indoor air factors
• QUICK AND CLEAR RESULTS: Connect via Bluetooth to the Airthings App or log in to the Airthings Dashboard online for detailed insights into your air
• EASY: Simply wave in front of the device to receive a color-coded visual indication of the overall air quality: Green (Good), Yellow (Fair), Red (Poor)
• SMART HOME INTEGRATION: Airthings Wave Plus works seamlessly with Alexa, Google Assistant and IFTTT (if this then that)
• RADON REPORT: Generate a free radon report via the Airthings Dashboard
• WHAT YOU GET: Wave Plus, 2 AA batteries, Quick Start Guide, Airthings 12-months warranty & Customer Support access via email or live chat

User questions & answers

Question:	Does it detect and/ or measure hcho (formaldehyde) levels, too
Answer:	Hi there! Thanks so much for your interest in the Wave Plus and your question! The TVOC sensor in the Wave Plus will detect formaldehyde as part of the TVOCs (total volatile organic compound) measurement but keep in mind it does not give a breakdown of each VOC in the air, but the total measured amount. If you have any other questions just reach out to our support team on the Airthings website, we'll be happy to answer any questions! -Tom from Airthings Support
Question:	Are any gas voc's checked
Answer:	Hey! Hey! Our TVOC sensor will indicate the total amount of gaseous chemicals in your environment. Please check out our Help Center on the Airthings website for a breakdown of VOCs. Common sources of VOCs are as follows: Candles and fires Anything that burns gives off fumes. Fireplaces and scented candles are especially harmful, so keep an eye on your levels while using them. Fragrances Mothballs, room deodorizers and perfumes—anything with a fragrance, contain chemicals that should be avoided. Cooking fumes Cooking also creates gases that can be toxic. Always use a hood fan or open a window while cooking indoors. And keep the door closed when grilling outdoors. New furniture New furniture, carpet, drapes, mattresses all contain chemicals that slowly release into the air, often for years after you bring them home. Cleaning products While cleaning with soaps, detergents, furniture polish and glass cleaners be aware of terpenes and ethanol and ventilate accordingly. Craft products Glue, paints, fabrics, wax, dyes, many craft products contain VOCs. Be sure to ventilate while using them. Children's toys Some hard plastics contain formaldehyde, and new fabrics emit toxins into the air. Look for BPA-free plastics or avoid plastics altogether, and wash toys before using them. Paints and varnishes Lacquers, paint, industrial glues, paint thinner and harsh chemicals should not be kept in the home, even when they are locked tight they emit chemicals into the air Please feel free to reach out to us via the Chat function on our website if you have any further questions or concerns :)
Question:	Does anyone have the Wave Plus installed in the basement? I have a finished, wide open basement (no dividing walls) about 1000 square feet in area
Answer:	I installed mine in the basement since that is where readings are typically the highest.
Question:	does it measure PM 2.5 and
Answer:	Hi there! Thanks for your question. Our Wave Plus doesn't measure PM particles, so it doesn't measure PM 2.5 or PM 10. The Airthings Wave Plus measures CO2 (carbon dioxide), TVOC (airborne chemicals), Radon, temperature, humidity, and air pressure.

Product features

Radon

Radioactive gas, invisible, dangerous, found in every home. As radon levels fluctuate daily, the only way to ensure radon levels stay low is by long term radon testing.

Carbon Dioxide

An exhaled gas impacting sleep, health, and productivity. Occupancy and daily activities can increase carbon dioxide indoors, using a co2 detector can help you adjust ventilation accordingly.

Volatile Organic Compounds

Volatile organic compounds- (VOCs) are toxins found in everyday items including cleaning products, furniture and paint. Our Total VOC sensor alerts you to high levels of a long list of chemicals. To keep levels low make small adjustments like using VOC free paint or installing a VOC air purifier.

Humidity

Humidity. Moisture promotes mold while dry air can lead to cold and flu. To get the best indoor humidity level for your home, monitor daily.

Temperature

Temperature. Affects sleep patterns, mood, comfort level and alertness. A temperature sensor is a necessity for every home.

Pressure

Pressure. The weight of the air can cause headaches, joint pain and fatigue. The barometric pressure of the atmosphere changes depending on elevation and weather patterns.

Be protected.

Radon is the leading cause of lung cancer among non-smokers, according to EPA approved estimates. Ensure harmful radon gas levels stay low by monitoring daily.

Breathe easy.

Know your air is free of toxins and chemicals (VOCs) found in everyday items. VOCs can cause serious health effects when you are exposed over both short and long periods of time.

Perfect balance.

Make sure humidity levels do not rise too high or fall too low. Optimum indoor humidity levels are between 30% to 59% according to the EPA. Healthy humidity levels are key to prevent mold and the spread of infectious disease.

Product description

Airthings Wave Mini is small in size but big in impact. This indoor air quality monitor is the first step into understanding your indoor air quality, or a great addition to your existing Airthings air quality ecosystem. The Total VOC sensor monitors toxins and chemicals in your air that can cause negative health effects. A VOC detector is key to ensure the optimal health and comfort levels of every room. An additional humidity sensor enables you to enjoy the best indoor humidity level for your specific home. Avoid mold growth and the increased spread of infectious diseases by maintaining healthy indoor humidity levels. In addition, the temperature sensor allows you to maintain not only a healthy home but a comfortable one too. The mold risk indicator will tell you when the conditions in a space are at risk for mold growth. This means it is a great device to use to prevent mold or to proactively watch out for the chance of mold. Get your results straight to your smartphone via Bluetooth or check the Airthings web dashboard for detailed and meaningful insights into your air quality.

• FOR EVERY ROOM: Airthings Wave Mini is the ideal indoor air quality companion for any room in the home.
• FRESH AIR SENSORS: Effortlessly monitor toxins and chemicals (Total VOCs), humidity and temperature to ensure optimum comfort and healthy levels in every room.
• TAKE CONTROL: Airthings Wave Mini alerts you when levels are too high, enabling you to ventilate accordingly.
• WHAT ARE VOCS? Volatile Organic Compounds (VOCs) are toxins and chemicals that can cause serious short and long-term health effects. They are emitted from everyday items including cleaning supplies, cooking fumes, paints, plastics, toys and outdoor pollution.
• HEALTHY HUMIDITY: Easily maintain healthy indoor humidity levels between 30% - 59% as the EPA recommends.
• QUICK AND CLEAR RESULTS: Wave in front of the monitor for a visual indication or connect the Airthings App via Bluetooth for detailed insights into your air.
• MOLD RISK: Mold growth at home affects the air we breathe triggering asthma, allergies, and illness. Stay ahead of mold growth with Wave Mini, because once you see it, it's too late

User questions & answers

Question:	Can the wave mini detect cigarette smoke,or detect the smoke has changed the air quality
Answer:	It monitors air quality for any changes so I would say it should. Just recently purchased this so I’m still learning what it can do.
Question:	Does the wave mini provide CO readings as well
Answer:	Hi there! Thanks for your question. The Wave Mini does not measure CO (Carbon Monoxide). It does, however, provide measurements for TVOC (Total Volatile Organic Compound), temperature, and humidity. You can learn more about Wave Mini on our website here: https://www.airthings.com/en-us/wave-mini and you can always reach out to us at [email protected]. Again, thanks for your question! -Tom from Airthings support
Question:	how is mini diferent than Wave
Answer:	Thanks for your question! The Wave Mini does not detect Radon like the Wave. The Wave Mini has 3 sensors - Temperature, Humidity, and TVOC (total volatile organic compounds). The Wave Has 3 sensors - Temperature, Humidity, and Radon. Let us know if you have any other questions at [email protected] or chat with us directly on the Airthings website! Again, thanks for your question! -Tom from Airthings Support
Question:	Does it monitor PM
Answer:	Hi there! Thanks for your question. The Wave Mini does not have a PM sensor, however, it is equipped with a TVOC (total volatile organic compound), temperature, and humidity sensor. If you have any other questions let us know at [email protected] or simply chat with us directly from the Airthings website! -Tom from Airthings Support

Product features

Wave to know your levels.

Wave in front of your device to get a visual indication of your air.

Color-coded.

By waving, the light ring will flash green (healthy), yellow (warning) or red (danger) based on your air quality levels.

Free App + Dashboard.

Access real-time detailed data from your devices and analyze your indoor air.

Mold Risk Indicator

The mold risk indicator will tell you when the conditions in a space are at risk for mold growth. This means it is a great device to use to prevent mold or to proactively watch out for the chance of mold.

Volatile Organic Compounds

Volatile organic compounds- (VOCs) are toxins found in everyday items including cleaning products, furniture and paint. The Wave Mini’s Total VOC sensor alerts you to high levels of a long list of chemicals, so you can adjust ventilation accordingly.

Humidity

Moisture promotes mold and aggravates asthma symptoms while dry air can lead to cold and flu. The EPA recommends humidity levels of between 30% - 59%. Maintain comfortable indoor humidity levels indoors by monitoring daily.

Temperature

Not only is it uncomfortable, but the wrong temperature can also affect sleep patterns, mood, and alertness. A temperature sensor is a necessity for every home.

Fresh air indoors.

By monitoring every day you will know when to ventilate and make small changes to improve the air. VOC air purifier, VOC free paint and low VOC flooring can also help to reduce the levels. Check that your changes are working in the Airthings app.

Know what to avoid.

VOCs are emitted from everyday household items. Often kids rooms have high VOC levels due to toys and plastic products. Similarly, Unhealthy chemicals can also be emitted from cleaning products, furniture and flooring.

Get the right balance.

Did you know that according to a Harvard Review 21% of the 21.8 million cases of asthma are annually attributable to residential dampness and mold? Avoid mold growth and the increased spread of infectious diseases by maintaining healthy indoor humidity levels.

• 🏡[2021 8-IN-1 Unique Design]: HYVQDNM 2021 indoor air quality monitor built in electrochemical sensors will provide you trustworthy measurements such as air of Carbon Monoxide(CO), Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10).This new mode can offer real time data and mean value, it is recommend you to focus on mean value of each gas after testing enough time because long-term monitoring, the real-time data exist instability.
• 🏡[Know Your Air Clearly]: This air monitor have LCD Digital Color Screen, large and easy to read. This air monitor will offer color indication to show overall environment quality which have Good(Green), Mild Pollution(Yellow), Moderately Pollution(Red), Severe Pollution(Red) four grade. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions.
• 🏡[East to Operate]: This air monitor is easy to operate which just pressing the functional button and one full page design make everyone can easy to read all the real time readings at the same time. Size about 5.83” * 2.76” * 1.18”. It's easy to carry the intelligent air quality monitor that can help us detect the air quality in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman.
• 🏡[2000mAn Rechargeable Battery]: HYVQDNM Air Quality Detector has a 2000mAn rechargeable lithium battery and packed with USB cable that can last up to 8 hours. It is recommend you to charge 6 hours before first use and do not use it when charging or in lower battery because the data may not so accurate. Built-in low power consumption processing chip, can carry on long time uninterrupted monitoring to air quality. It will always take care of you and your family health.
• 🏡[Kindly Note]: Please be aware this air quality monitor is for home indoor place, please kindly close door and window before testing. We do recommend using the monitor as a stationary unit and focus on long time(at least 60 minutes) mean values and overall environment quality indication.If you have any questions regarding monitor functionality or you need any assistance on how to re-calibrate the sensors, please contact us via email; we will always be your site.

User questions & answers

Question:	Does this monitor detect radon & ozone
Answer:	No, this monitor can detect CO, CO2, HCHO, TVOC, PM2.5&PM10 six values.
Question:	Does this device battery rechargeable
Answer:	Yes, you can charge it with your own AC adapter connect the supply USB Cable.
Question:	Dose this device can be used in outdoor
Answer:	No, it is indoor air quality monitor.
Question:	Can I connect this device to my computer and download data
Answer:	No, this air monitor does not have computer connectivity system yet.

Product features

HYVQDNM 2021 Newly 8-IN-1 Air Quality Monitor

HYVQDNM 2021 Newly 8-IN-1 Air Quality Monitor can offer CO, CO2, HCHO, TVOC , PM2.5 and PM10 real-time data and mean value; it also will show you overall air quality by color indication. Easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication and support of an mean value will let you know if you air is unsafe and you need to take some actions. It built with a 2000mAn polymer lithium battery can be used continuously for 8-12 hours after full charging(4-6hours), which is a good solution for your testing needs in different space for a long time.

CO/CO2

What is CO2&CO?

Carbon dioxide (CO2) is a colorless, odorless(no smell) but slightly acidic gas at normal temperature and pressure, and is also a common greenhouse and a component of air.

Carbon monoxide(CO) is a carbon-oxygen compound, usually a colorless, odorless, and tasteless gas which has both reducing and oxidizing properties.

How to deal it?

1. Ventilate and detoxify 2. wear a ventilation mask

HCHO

What is HCHO?

Formaldehyde, colorless and irritating gas, chemical formula HCHO or CH2O, molecular weight 30.00, also known as antaldehyde. Colorless, irritating to human eyes and nose.

How to deal it?

1. Ventilation method 2. Deodorization

TVOC

What is TVOC?

Indoor air quality researchers usually refer to all indoor organic gaseous substances they

sample and analyze as TVOC.

How to deal it?

1. Do not use bad quality building materials. 2. Ventilate and even heat and bake to accelerate the release of TVOC. 3. Placed rose, lily and gorilla in living room.

PM2.5/PM10

What is PM2.5/PM10?

*Fine particles are also called fine particles, fine particles, PM2.5.

*Usually refers to particulate matter with a particle size below 10 microns, also known as PM10.

How to deal it?

1. Filter method 2. Water adsorption method 3. Plant absorption method

How to handle when your indoor have excessive harmful substances？

• Air purifier
• Activated carbon absorption
• Buy a regular air purifier
• Natural ventilation
• Cleaning
• Elimination of pollution sources

• KNOW AT A GLANCE: Large and clear reading, with 3-color indicator lights, know the air quality immediately from wherever you look at it.
• 4-IN-1 MULTI-FUNCTION: Measure PM2.5, AQI, TVOC, and HCHO, with sensitive Temtop 3rd generation laser particle sensor and Dart electrochemical sensor.
• EASY TO USE: A home button realizes all operations, including power, interface switch, and display cycling. The 2200mAh battery provides portable power when USB charging is not available.
• CALIBRATION AVAILABLE: The HCHO sensor supports easy calibration. To ensure the accuracy of the sensors, make sure it is placed in a ventilated environment (indoor or outdoor) for at least 6 hours before used for the first time or after stored for a long time.
• WHAT YOU GET: M10, Charging Cable, Reset Pin, User Manual, Temtop 12-months Warranty & 24/7 Customer Support Access via Email and Phone.

User questions & answers

Question:	Can this be used outside to check outdoors PM 2.5 concentrations
Answer:	Yes, sure thing. It can be used outside to check PM2.5 concentrations.
Question:	I just received the product & put it outside. however, we have very high aqi from fires. should i put it ourdoors
Answer:	No, please just put it in a ventilated place, or just near the air purifier.
Question:	Can you leave it plugged in and running all the time so that you don't have to worry about charging the battery every 6 hours
Answer:	Yes, you can leave it plugged in and running all the time.
Question:	When you first open it and calibrate it, it says to place outside for at least 6 hrs. It does't mention turning it on then, is that right
Answer:	Please just keep it off in a windy area for 6 hours.

Product features

4-IN-1 Multi-function

• Cubic Design
• VA-LCD clear screen (3.2*3.2*1.2 inches)
• Easy to get an overview of the readings of PM2.5, AQI, TVOC, and HCHO

Easy to Use

• Hold button to turn on/off
• Single-click to switch the display
• Double click to recycle display
• Charging port, air vents, reset button on the back.

Clear Indicator

• 3-color light indicator for battery and health levels
• The battery lasts running for 6 hours at most when full charge

• 【MULTIPLE DETECTABLE GASES】 - For everyone,，It's necessary to know the air quality of the place where you live.Upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC). Those readings involve detection of toluene, harmful chemical substances and pollutants in the air such as carbon dioxide, carbon monoxide,smoke,fog,dust,ink and others.
• 【NEW DESIGN】 - Newest unique mold and design with 5.5 inch LED Screen Digital Display; it can offer mean value for each gas because long-term monitoring, the real-time data exist instability.
• 【PORTABLE&2000mAh RECHARGEABLE BATTERY】 - Size about 4.9” * 3.1” * 1.3”. It's easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman. Built with 2000 mAh rechargeable battery and packaged with one USB cable, the standby time can last for 8-10 hours.
• 【EASY TO OPERATE】 - Just press the power on / off button 3 seconds, you can easily operate this air monitor, designed with LED digital display, can provide the average value of each gas, real-time detection of harmful HCHO and TVOC in the room."
• 【KINDLY NOTE】 - Please be aware this air quality monitor is for home indoor place. We do recommend using the monitor as a stationary unit and focus on 30 and 60 minute mean values and overall environment quality indication because long-term monitoring, the real-time data exist instability. If you have any questions regarding monitor functionality or you need any assistance on how to re-calibrate the sensors, Please feel free to contact us.

User questions & answers

Question:	Does this device can see all readings together
Answer:	Yes, the all values are display in whole one screen and easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication.
Question:	Does this unit have an alarm for high levels
Answer:	No alarm. But good suggestion. Maybe they’ll take yours in. 👍
Question:	What is the accuracy (not resolution) of the CO2 and other measurements (plus or minus ppm
Answer:	I mainly got this for CO measurements. I run a CO2 burner in a grow facility, and wanted to know if CO was being released. I have a Spartan Environmental controller for my grow, and if the Spartan reads 1200ppm, this unit will read ~950.... so not totally accurate, and the Spartan was a $500 unit with a sniffer in the middle of the room so I tend to believe what it's tell me is accurate.
Question:	How long do you have to charge the unit before you do the calibration
Answer:	Item should be fully charged for best results. Leave on and outdoors where synthetic formaldehyde and TVOCs are negligible for 5+ minutes. Press power button twice quickly to calibrate device. A 0.000 reading shows device has calibrated.

Product features

HEILIANG multifunctional air quality Detector

HEILIANG newly handheld air quality tester tracks the 4 key factors of air quality: CO and CO2, HCHO and TVOC. These elements can impact your family's health and comfort in many ways, including respiratory health, sleep, focus, mood, and immunity.

Packing List

· one handheld air quality detector

· one instruction manual

· one USB charging cable

· one gift box

LED 5.5" Screen

Easy to read numbers surrounded by LED Screen Digital Display with air quality light indication so that it is very convenient for you to check different value. The all values are display in whole one screen. Formaldehyde HCHO/TVOC and CO/CO2 real time gas monitoring to let you know air quaility. It can help us detect the air gas we can not feel or underestimate,designs key in household,office,school,car,etc...especially in which has baby,child,pregnant woman and the old.

2000mAn Rechargeable Battery

Newly handheld air monitor built with a 2000mAn polymer lithium battery can be used continuously for 8-10 hours after full charging, which is a good solution for your testing needs in different environment for a long time.

DART Electrochemical Sensor Technology

Air Quality Monitor is designed by the DART Electrochemical Sensor technology with combination of factory testing, calibration and ISO compliance will provide you trustworthy measurements. As well as a high resolution in CO/CO2 HCHO/TVOC values will shows you the slightest fluctuations in the air quality. It allows you to take timely measures to keep the air quality within safe levels on Home/Office/School/Car and various occasions.

Recommended methods to control harmful substances:

· Air purifier

· Activated carbon absorption

· Buy a regular air purifier

· Natural ventilation

· Cleaning

· Elimination of pollution sources

TVOC Detection

TVOC (Total Volatile Organic Compound) is one of the main pollutants of home decoration pollution.

M10 can detect the content of various volatile organic pollutants such as benzene toluene, alkanes and aromatics to protect you and your family's health.

Formaldehyde (HCHO)

HCHO is a colorless, poisonous, highly water-soluble gas with an obnoxious odor. Used in the manufacture of disinfectants, preservatives, and hundreds of industrial and consumer products such as adhesives, carpeting, decorative paneling, foam insulation, drapery, fiber and particle boards, and permanent press fabrics.

Carbon Dioxide (CO₂)

CO₂ is a greenhouse gas that is natural and harmless in small quantities but as levels rise it can be dangerous to your health. Most commonly produced by the air we exhale, CO₂ levels concentrate indoors with less ventilation.

Exposure to high carbon dioxide levels can cause:suffocation by displacement of air, incapacitation and unconsciousness, headaches, vertigo and double vision, inability to concentrate, tinnitus, seizures.

Air Quality Index (AQI)

The air quality index is the extent to which the air is clean or polluted, and the impact on health. Mainly through five pollution standards: ground ozone, particulate pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, nitrogen dioxide.

• 🏠MULTIPLE DETECTABLE GASES - Yvelines upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon Dioxide(CO2), Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle Matter(PM2.5/PM10). Those readings involve detection of toluene, harmful chemical substances and pollutants in the air such as carbon dioxide, carbon monoxide,smoke,fog,dust,alcohol,glue,paint,ink and others.
• 🏠NEW DESIGN - Newest unique mold and design with LCD Color Screen Digital Display; it can offer mean value for each gas because long-term monitoring, the real-time data exist instability.
• 🏠PORTABLE&2000mAn RECHARGEABLE BATTERY - Size about 5.83" * 2.76" * 1.18". It's easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman. Built with 2000 mAn rechargeable battery and packaged with one USB cable, the standby time can last for 8-12 hours.
• 🏠EASY OPEARATION -This air monitor is easy to operate with just pressing the functional button, easy to read numbers and support of an alarm sound will let you know if your air is unsafe and you need to take some actions.
• 🏠NOTIFICATION&WARRANTY - It is recommend to close the door and window when test indoor; It is need around 60 minutes for testing formaldehyde TVOC CO2 (It is just need around 3-15 minutes for testing Cabinet, drawer etc small space.). If you have any questions about our item, please feel free to contact our customer service. We will always be your site.

User questions & answers

Question:	We have 1700 sq ft. How many would be required
Answer:	Regrettably, I returned both Yvelines air quality testers because each was defective. I'd try another brand
Question:	Does this detector show what the normal ranges are for those items it is detecting
Answer:	No, but you can google them.
Question:	can alarm stay off? thanks
Answer:	I had to return both testers. For different reasons, neither worked.
Question:	Need to check the air quality in the interior cabin of my car, concerned about exhaust fumes and other harmful fumes, is this unit sufficient
Answer:	Please don't make a mistake. This Air Quality Monitor does NOT measure carbon monoxide (chemical nomenclature "CO"). Carbon monoxide is one of the most deadly components of exhaust fumes from a gasoline-powered engine. If you don't measure carbon monoxide in your car cabin, your overall air-quality measurement is INCOMPLETE, and it could be a deadly mistake. There are gas-detection monitors on Amazon that measure for carbon monoxide.

Product features

LCD Color Screen

Easy to read numbers surrounded by LCD Color Screen Digital Display with air quality light indication so that it is very convenient for you to check different value. The all values are display in whole one screen. And it also offer each value's mean result, you just need to see the environment which color flicker. CO2 Formaldehyde HCHO/TVOC and PM2.5/PM10 real time gas monitoring to let you know air quaility. It can help us detect the air gas we can not feel or underestimate,designs key in household,office,school,car,etc...especially in which has baby,child,pregnant woman and the old.

2000mAn Rechargeable Battery

YVELINES Newly handheld air monitor built with a 2000mAn polymer lithium battery can be used continuously for 8-12 hours after full charging, which is a good solution for your testing needs in different environment for a long time.

DART Electrochemical Sensor Technology

YVELINES Air Quality Monitor is designed by the DART Electrochemical Sensor technology with combination of factory testing, calibration and ISO compliance will provide you trustworthy measurements. As well as a high resolution in CO2 HCHO/TVOC values will shows you the slightest fluctuations in the air quality. It allows you to take timely measures to keep the air quality within safe levels on Home/Office/School/Car and various occasions.

PREVENT SOAKING

Please do not put it in the bathroom or place where will be drenched by water.

PREVENT STRONG VIBRATION

Please do not make strong shock and vibration, for example, falling on the floor.

PREVENT ELECTRIC SHOCK

Please do not repair or change the detector to prevent electric shock.

PREVENT CHILDREN FROM TOUCHING

Please put it where children are not in reach to avoid danger.

• REAL-TIME AIR QUALITY MEASURE - Monitor air quality with the touch of a button, measuring levels of CO2, Volatile Organic Compounds (VOC), and Particle Matter ((PM2.5 & PM10). Also measure temperature and humidity in your surroundings.
• PORTABILITY - With pocket-sized portability, take the Huma-i with you at all times to measure the quality of air around you. Great for both indoor and outdoor environments.
• ADVANCED FAN & SENSORS – The Huma-i has a built-in fan to quickly draw in ambient air to allow real-time measurements
• EASY OF USE - Easily read real time air quality results in graph mode or Icon mode through the OLED display by toggling a one touch button. And easily view the Status LED lights that lets you quickly know the status of CO2, VOC, and particle matter.
• DURABLE & STYLISH - Sturdy and designed focused outer casing looks great while protecting your Huma-i device. Have peace of mind when carrying your Huma-i device during your activities.

User questions & answers

Question:	I find this device very useful. Can you please tell me if it is robust enough to leave this plugged in 24/7 to use as an always-on display
Answer:	Yes that's no problem
Question:	Is this air counter meter the fine particle pollution emitted by wood burning stoves?! Thank you
Answer:	I have found that it registers just about anyting , the neighbor was burning the other day , quarter mile way, caught it and then I ran a air freshener apparently that's a No-No
Question:	Will diffusing essential oils have any effect with this
Answer:	As the Huma-i detects airborne particles, any diffusers which add particles to the air, aroma or otherwise will be detected as an increase in particulate matter in the air. So the short answer is, yes it will affect readings. Take note this is not an air scrubber. It is only a detector.
Question:	What's the difference between the three types offered for purchase
Answer:	Thank you for your question. The difference between 3 types are as follows; 1. Huma-i white (HI-100) It measures PM2.5 and PM10 at the same time. 2. Huma-i skyblue (HI-120) It measures VOC as well as PM2.5 & PM10 at the same time. 3. Huma-i black (HI-150) It measure CO2 & VOC as well as PM2.5 & PM10 at the same time. It also measures temperature and humidity. Thank you. Anytime & Anywhere with Huma-i

Product features

CO2 (Carbon Dioxide)

Carbon dioxide is a colorless, tasteless gas that is heavier than air and the gas itself shows little toxicity, but suffocation is possible. If the amount of carbon dioxide is higher than the amount of oxygen circulating in the brain, the respiratory disorder, headache, tinnitus, and blood pressure will rise.

Risk of CO2 is as follows;

1. 450ppm or less: It is outdoor air in ordinary everyday life.

2. 450 ~ 1000ppm: The air is clean and there is no big trouble in breathing.

3. 1000 ~ 2000ppm: The air becomes cloudy and sleepy.

4. 2000 ~ 5000ppm: My head hurts, I get more sleep, I lose my concentration, my heart rate gets faster and I have a slight vomiting reaction.

5. 5000ppm or more: It can lead to permanent brain damage and even death in severe cases.

VOC (Volatile Organic Compounds)

VOC (Volatile Organic Compounds) is a hydrocarbon compound that volatilizes in the air and generates odor and ozone. VOC is mainly found in the manufacturing and storage processes of petrochemical refining coating plants, building materials such as automobile exhaust, paints and adhesives, and storage tanks of gas stations. Benzene, formaldehyde, toluene, xylene, ethylene, styrene, and acetaldehyde are part of VOC which is well known.

VOC is a toxic chemical with a carcinogen that causes damage to the nervous system through skin contact or breathing inhalation.

• 【Know The Air Around You】: The air quality tester has built-in advanced Infrared (NDIR) & laser scattering detection sensors designed to accurately track air quality including CO2, PM2.5、PM1.0 and PM10 (particulate matter), temperature and humidity. Tips: Please let the device work short mins outdoor before use for most accurate results.
• 【10 hours+ long standby & Auto Alarm Function】: The built-in 2000 mAh battery can provide more than 10 hours of standby time when fully charged, in addition to real-time power through the included usb charging cable, this enables long-term monitoring of air quality level. Press the main function key twice quickly to turn on/off the automatic alarm function (An alarm will be issued when the CO2 reading exceeds 1000ppm).
• 【2.8inch Instant Readout】: Professional sensors require a sampling time of only 1.5s, which can display the current air quality on the screen in real time. The air quality detector uses a 2.8in large size display, which can show the readings simply and intuitively (The reading of PM1/PM2.5/PM10 automatically switches every 5s).
• 【Portable CO2 Detector】: A portable detector the size of a palm, is easy to carry and can detect the gas quality in bedroom, living room, kitchen, office, car, school, hotel, campground and other environments. the data can indirectly understand the presence of second-hand smoke and mold, which will send out an alarm for your health.
• 【Easy Operation & Customer Service】: Just one button operation to switch on/off, with a detailed instruction manual, in addition, if you have any questions about our products and services, please feel free to contact us any time, we are always committed to providing you with quality products and services!

User questions & answers

Question:	Does this co2 monitor need to be calibrated before the first use
Answer:	I recommend that you use this air quality monitor for a while outdoors before using it for the first time to achieve the purpose of calibration.
Question:	Can this meter be used to detect PM2.5 outdoors
Answer:	Sure, this air quality monitor can be used to detect the concentration of PM2.5/PM1/PM10 outdoors.
Question:	What's the accuracy/margin of error of the CO2 measurement (not the resolution or range
Answer:	Hi, the error of this co2 detector is about ±40ppm ±3%FS (25°C).

Product features

You Need to Have an Air Quality Detector for You, Your Family, Children and Pets.

Air pollution is a major threat to human health and it is important for you to know the quality of the air around you, not only for you, but also for the people you care about. Langkou air quality detector can detect a wide range of harmful gases, for the health of you and your family, You should own it.

6 in 1 Multifunction Air Quality Meter

Built with a variety of specialized sensors that can detect several different data, it also acts as a room thermometer and hygrometer.

Smart Alarm Function

With alarm function, when the concentration of carbon dioxide (CO2) exceeds 1000 ppm, an alarm will sound (this function can be turned off), so you can avoid exposure to polluted gas.

One-click Quick Start, Real-Time Reading

Air quality meter has a one-key start function. It only takes 1 second to understand the current air quality in real time, enjoy the convenience brought by technology.

10 Hours+ Long Standby & 2000mAh USB Rechargeable & Mini Size

The body has a built-in 2000 mAh high-capacity lithium battery, which can be used for 10 hours+ when it is fully charged, and can also be continuously powered by the included USB charging cable. Thanks to its mini size, you can take it with you wherever you go, whether you are traveling or working at home, it is the best choice.

Langkou multifunction Air quality monitor

Material: Metal + ABS

Color: White

Weight: 200g

Product size: 90x90x50mm

Power supply：rechargeable Li-battery 2000mah

Package Include:

1x Air quality detector

1x User manual

1x USB Charging cable

Apply to:

CO2/PM2.5/PM1.0/PM10/Temperature/Humidity

• REDUCE AIR POLLUTION EXPOSURE. Helps you make lifestyle changes so you can breathe cleaner air.
• MEASURES AQI & PM 2.5 CONCENTRATION. Protect yourself and your family from smoke and dust pollution.
• PORTABLE & VERSATILE. Compact design fits in the hand.
• PEACE OF MIND. View data for up to 30 days so you can identify and avoid pollution hot-spots.
• ACCURATE INFORMATION. Laser air quality sensor measures particulate pollution in the air around you.

User questions & answers

Question:	Does it tell you if the dust count is high ? How do know why air quality is bad
Answer:	Yes, the BREATHE|Smart 2 monitor measures dust levels using an accurate laser-based particle sensor which uses the light scattering method to detect and count particles. The readings are instant so you can easily see when levels of dust are increasing or falling. The levels can be displayed as an index or the actual concentration of particles in the air, and there is an indicator on the display to show you if the levels are good or bad. Additionally, the side glow the corresponding colour (eg green for good, red for bad) so you see at a glance the current conditions.
Question:	Does it meansure hcho and/or tvoc
Answer:	BREATHE|Smart 2 measures PM2.5 particulate air pollution, it does not measure HCHO or TVOC
Question:	Does it measure tree pollen
Answer:	Pollen spores are basically a type of particulate matter but they tend not to fall into the category of PM10 or PM2.5, as they are usually larger. This monitor is therefore not recommended for measuring tree pollen.
Question:	does it measure carbon monoxide
Answer:	This monitor does not measure carbon monoxide. It measures particulate pollution, specifically PM2.5 (particles less than 2.5 micrometres in diameter). These particulates are the deadliest form of air pollution due to their ability to penetrate deep into the lungs and blood stream. Sources include vehicle emissions, factories, construction sites, burning of fossil fuels. grilling food on charcoal or gas grills, burning leaves, smoking cigarettes, and burning wood in fireplaces or stoves.

Product features

BREATHE|Smart 2 helps you breathe cleaner air

• Instantly displays real-time concentrations of harmful pollution so you can reduce your exposure to toxic particulate matter.
• Helps you make lifestyle choices so you can breathe cleaner air. Studies have shown that you can reduce your exposure by as much as 50% simply by taking alternative routes.
• Specifically measures Particulate Matter (PM2.5) as it is the deadliest form of air pollution due to its ability to penetrate deep into the lungs and blood stream.
• Use indoors or outdoors.

Make invisible air pollution, visible, and see what’s in the air you breathe.

BUY WITH CONFIDENCE – IN THE UNLIKELY EVENT THAT YOUR BREATHE TECH PRODUCT IS FOUND TO BE DEFECTIVE DUE TO FAULTY MATERIALS OR WORKMANSHIP, WE WILL REPAIR OR REPLACE IT FOR 2 YEARS FROM DATE OF PURCHASE.

Parents

Children are more vulnerable to breathing in polluted air than adults. For their size, they breathe more air each minute than an adult and buggies and prams put them at the level of car exhausts.

Use BREATHE|Smart 2 on your pram so you can monitor exposure to air pollution, and in the nursery or bedroom so you know when you need to ventilate.

Respiratory conditions

People who suffer from respiratory conditions are especially vulnerable to the detrimental effects of air pollutants.

BREATHE|Smart 2 can help you reduce the effects of air pollution by making you aware of the air quality and notifying when you need to take extra measures such as reducing the time outdoors.

Cyclists

Cyclists breathe more deeply and at a quicker rate than pedestrians while in closer proximity to exhaust fumes, which can increase the number of airborne particles penetrating the lungs. Evidence has shown that avoiding busy roads can reduce the amount of pollution you breathe by up to 50%.

BREATHElSmart 2 can help cyclists choose low pollution routes

Runners

Heavy breathing during exercise means you inhale more pollution and particles get lodged deeper in your lungs.

BREATHE|Smart 2 can help runners monitor and reduce their exposure by alerting when air pollution is high.

• Bezel Less LED Screen: The air quality tester boasts Bezel Less 2.7 inch LED Screen and an elegant profile. The minimalist design makes it look elegant and sleek anywhere and fit any style of decor.
• Know Your Air - Track PM2. 5 particulate matter AQI in your space. Because long-term monitoring only for PM 2.5, the real-time data is more exist stability and accuracy than other multifunctional air quality meter.
• Easy Operate & Rechargeable Battery- Using this air quality detector couldn't be easier. It takes one single press of the same button to turn it on/off. Built with rechargeable battery and packaged with one USB cable, the standby time can last for 6-8 hours.
• Compact design - Size about 3.3”X3.1”X 2”. It's easy to carry the intelligent PM2.5 sensor that can help us detect the particulate matter pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby, child and pregnant woman.
• What You Get: Air Quality Monitor, USB Cable, User Manual, 12-months Warranty.

User questions & answers

Question:	Where can I buy a charging cable for this unit
Answer:	Any micro USB cable will work and can be plugged into a USB charger. Also the package includes a USB cable.
Question:	does this air quality monitor device detect cigarrette smoke
Answer:	Yes, of course.
Question:	What levels of PM2.5 are considered healthy or unhealthy
Answer:	Here are levels of PM2.5 or dust particulate matter measuring 2.5 micrometers or less considered healthy/unhealthy: 0-50 ug/m³ Good Air Quality 51-100 ug/m³ Moderate Air Quality 101-300 ug/m³ Unhealthy Air Qulity >300 ug/m³ Hzardous
Question:	Can this monitor be used for outdoor air quality monitor
Answer:	The monitor can check for outdoor particulate matter (PM2.5) levels.

Product features

PM2.5 Level >100 ug/m3

When PM2.5 index value exceed 100 ug/m3, the indicator will be red.

PM2.5 Level <100 ug/m3

When PM2.5 index value is lower than 100 ug/m3, the indicator will be green.

USB Charging & Lithium Battery

When USB charging is not available, the built-in lithium battery will provide portable power for 8 hours.