14 best 6 inch inline duct fans

• A duct fan designed to increase airflow in HVAC systems and ventilate home spaces like attics and workshops.
• Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
• Unibody die-cast construction with no welded seams; reduces vibration while ensuring smoother airflow.
• AC brushless motor with steel blades and lubricated bearings; not suitable in restricted airflow applications.
• Duct size: 6” | Dimensions: 7.28 x 5.90 x 5.90 in. | Airflow: 265 CFM | Noise: 35 dBA | Bearings: Dual Ball

User questions & answers

Question:	Where can I get a aviation port cord exatention
Answer:	Hello, Thank you for taking the time to reach out to us! Unfortunately, the RAXIAL S6 does not have an extension cord. Please accept our sincerest apology! Thank you for your question! Kind regards, The AC Infinity Team-
Question:	At how high of temps can this fan function or do you recommend another product? Does it have thermal protection
Answer:	I am currently using a 2x2x4 grow tent with 2 "600" watt LED lights that I run from 7pm to 10am and as long as I barely turn the speed controller up a 1/4 turn when lights come on it's about 80 degrees on my therm under the light. Then when the lights go off I just turn down to low and it's perfectly fine gets down to 70 degrees if that's what your house is at. I do HVAC and I was totally blown away with the power, the constructions of material , it's a high quality product I was already thinking of using for customers not getting enough air to bath room or far away room ect.
Question:	Is it possible to Daisy chain this fan to the cloudline T
Answer:	I sort of daisy chained a s4 booster for intake with a T6. I used a 3 grounded outlet adapter to plug both into the temp controller. Works for me.
Question:	Will this plug into T8 digital temp and humidity control
Answer:	Hello there, Thank you for taking the time to reach out to us. We sincerely apologize for any convenience. Unfortunately, our Raxial Booster Fans are not designed to be plugged into the Digital Thermal Controller included with our Cloudline Series of Inline Duct Fans. We will, however, forward your message to our product development team to gauge interest. If you have any other questions, please contact our customer support department directly through our company website and one of our Customer Service Agents will be happy to assist you. Kind regards, The AC Infinity Team -

Product features

Premium Solid Steel Body

This booster fan boasts a matte black aesthetic that expresses the heavy-gauge construction and its high quality. The galvanized steel body has no folded seams, enabling the fan to perform with low noise and no rattling. It also features crimped ridges on the exhaust end for a tight, secure grip on your flex or rigid ducting.

Speed Controller

All models include a speed controller to optimize airflow and noise. The soft rotating knob provides ease of use and quick responses to changing conditions.

High Performance Motor

Uses an AC motor that spins smoothly and relatively silent. Capable of high airflow boosting in applications like active intake for grow tents.

Long-Lasting

Features a 67,000 hour lifespan, using balanced steel blades and lubricated ball bearings that eliminates the need to maintain the fan.

Tight and Secure Lock

The aviation ports are easy to plug in and tightly secures each other using a retainer that also keeps moisture, dust and debris out.

Product description

Inline Duct Fan

The duct fan system is designed to quietly cool AV equipment rooms and closets, and to ventilate various air circulation and exhaust projects. Features an inline speed controller utilizing PWM-technology. Contains a mixed-flow design and an EC-motor for a quiet and high static-pressure performance. The motor box containing the fan’s impeller and blades can be detached from the mounted frame for easy cleaning and maintenance. Complete kit includes one duct fan unit, one inline speed controller, installation manual, and all necessary mounting hardware.

Precise Speed Controller

The inline speed controller enables you to set the duct fan’s speed to optimal noise and airflow levels for various environments. Unlike common AC-powered duct fans that suppresses voltage to control fan speeds, this duct fan features an EC-motor that is precisely controlled using PWM (Pulse Width Modulation). This technology enables the fan's motor to be able to run smoothly at extremely low RPM speeds without generating motor noises and heat as seen on variable voltage controllers. Eight-speed options are available with a power switch, and backup memory. This S6 model can be connected to the smart controller of the CLOUDLINE T6 (AI-CLT6) model to share the same programming and power source.

Quiet and Energy Efficient Design

The inline booster fan features a mixed flow design using a stator blade and dual hydrodynamic wind circles. This gives it a high static pressure rating, enabling it to deliver airflow even in applications where air movement is being restricted. The motor houses dual ball bearings rated at 67,000 hours which allows the duct fan unit to be mounted in any direction. The unit is IP44 rated to be highly resistant to dust and liquids and performs well even in harsh environments.

• Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
• Features an 8-speed manual controller utilizing PWM. See T-Series for temperature and humidity controls.
• Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
• Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware.
• Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball

User questions & answers

Question:	how much static pressure can this produce? can it push a couple hundred cfm thru 6 inch duct for 40ft
Answer:	Hello, Thank you for your inquiry. I would recommend using compressed air to clean the unit from the vents. This unit produces 300 Pa of static pressure with a highest CFM rating of 351. That being said, it will initially push a couple of CFM in the beginning but the further it goes the less CFM it will push. Kind Regards,
Question:	Does the fan come with a pressure switch
Answer:	Hi there, Thank you for reaching out to us! The fan only comes with a speed controller that will allow you to adjust the speed of the fan, there is no pressure switch. Kind regards, Kenny Ngo AC Infinity
Question:	Is the impeller on fan made of plastic or metal
Answer:	Hi there, Thank you for reaching out to us! The blades on this fan would be made of plastic. Kind regards, Kenny Ngo AC Infinity
Question:	What is the range of cfm output, at different settings? can i bring it down as low as 100 cfm
Answer:	Hi there, Thank you for reaching out to us! Below I have provided an approximate breakdown of the CFM for the fan on each different speed. 44 / 88 / 132 / 176 / 220 / 264 / 308 / 351 Kind regards, Kenny Ngo AC Infinity

Product features

A Quieter and Smarter Inline Fan

The new CLOUDLINE series contains a cutting-edge Electronically Commutated (EC) motor, controlled using precise electronic pulses and smart programming. This enables the inline fan to operate considerably quieter, and reach low speeds without generating noise or heat. The EC motor is also twice as energy efficient and can save up to 40% in energy costs, paying for itself in the long run.

Smart Programming

T-series models include a programmable controller with precise temperature and humidity sensors located on the 12-foot corded probe.

Quiet PWM Motor

Each fan uses a quiet, energy-efficient EC motor controlled using Pulse Width Modulation (PWM). Dual ball bearings allow for omnidirectional mounting.

Mixed-Flow Design

Featuring a mixed flow design, the fans maintain peak performance in high static pressure environments. Ingress-protected against dust and liquids.

Plug and Play

The complete kit includes the inline fan unit, controller, user manual, and everything needed to mount the fan and power it through an outlet.

CLOUDLINE 4-Series

A CLOUDLINE T4 plus CLOUDLINE S4 system can be linked to the same smart controller, and used in conjunction for a total of 410 CFM airflow. This set-up is ideal for ventilating smaller grow tents and cooling AV rack cabinets.

CLOUDLINE 6-Series

A CLOUDLINE T6 plus CLOUDLINE S6 system can be linked to the same smart controller, and used in conjunction for a total of 804 CFM airflow. This set-up is ideal for large grow tents, AV closet cooling, and boosting airflow for HVAC projects.

MIX and MATCH

The same controller can connect CLOUDLINE fans of different sizes, to share the same programming. For example, an exhausting CLOUDLINE T6 with a filter can share the same controller as an intaking CLOUDLINE S4, to balance static pressure.

Product description

VIVOSUN Duct Fan Inline Fan for Household / Grow Room Ventilation



Item Specifications:

-Diameter: 6 inch

-Power Supply: 110/120V

-Power: 37 W

-Speed: 2960 RPM

-Air Flow: 240 CFM

-Cord Length: 5.5 feet

-Warranty: 1-Year





Key Features:

-Perfect for boosting air flow in long runs of ducting

-Energy efficient & quiet operation

-Lightweight & super easy to install

-Fluted on both ends to receive ducting

-Balanced metal blades are ideal for boosting air supply and venting exhaust air

-Engineered for maximum boost with minimum noise

-Motor features a permanently lubricated bearing that operates quietly and requires no maintenance

-Solve air delivery problems without major system rework or expense

-Can be installed in any location, such as bathrooms, attics, greenhouses, tents, etc.

• HOUSEHOLD APPLICATIONS: Help to boost airflow in HVAC units to remove exhausts and odors from bathrooms & workshops and ventilate basements & attics, etc.
• UPGRADED ADVANTAGES: Superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance; Portable and lightweight; Sufficient 5.5' grounded power cord
• SPECS.: Diameter 6 inch, Speed 2960 RPM, Air Flow 240 CFM, Voltage 110/120V, Power 37W
• GROW ROOM APPLICATIONS: Used as intake fan to bring fresh air into grow rooms; Also used as exhaust fan in smaller setups with LEDs or Lights under 400W.
• NOTE: Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉. If any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.

User questions & answers

Question:	Can this be mounted vertically without harm to the motor or bearings? Answers from mfg or installation instructions only please. Thank you
Answer:	The back of my unit gets hot. Too hot to place on a wall. I cannot hold my hand for more than a few seconds. I suggest before hanging it on a wall, allow it to run at 1500 overnight and try feeling the back. Apparently the units vary.The unit is not designed to produce heat on both sides, just the front.
Question:	Would this fan properly vent a 1000w hps lamp
Answer:	Yes it does
Question:	Can this fan be used to help with drafting on a wood stove? In line at top of chimney
Answer:	Yes, the clear gauge on the side (under the handle) is plastic
Question:	Can you hook up a speed control to this booster
Answer:	I have no idea... when the water starts boiling it automatically turns itself off.

Product features

VIVOSUN 6 inch 240 CFM Inline Duct Booster Fan

VIVOSUN inline duct fan helps with ventilation issues. This duct booster fan is perfect for boosting airflow in long runs of ducting. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.

Features

Application Scenarios

Used as intake fan to bring fresh air into grow rooms; Also used as exhaust fan in smaller setups with LEDs or Lights under 400W.

ATTENTION: This duct fan can not used with carbon filter.

Product description

Inline Duct Fan

A smart inline duct fan designed to quietly ventilate hydroponic grow rooms, boost heating/cooling to rooms, circulate fresh air, exhaust projects, and cool AV closets. Featuring an inline mixed-flow design, the duct fan can maintain airflow even in high static pressure applications. Contains an EC-motor with PWM-control for a quiet and energy-efficient performance. Includes an intelligent controller that features advanced programming and functions. Complete kit includes one duct fan unit, one thermal controller, one corded thermal probe, two duct clamps, installation manual, all necessary mounting hardware, and all necessary mounting hardware.

Intelligent Controller

The controller can be programmed to adjust fan speeds to respond to varying high and low temperatures, and humidity. For ventilation applications, the controller can be set to run continuously or triggered to run at customizable speeds when given power, due to its backup memory capability. Additional features include a countdown timer, alarm system, and eco-mode. Includes a detachable 12-foot precision probe that is water-resistant. This EC smart controller can power and control two inline fans of any size like this CLOUDLINE T6 with an S4.

Quiet and Energy Efficient Design

Features an EC-motor that is controlled using PWM (Pulse Width Modulation). This technology enables motors to be able to run smoothly at extremely low RPM speeds without generating additional heat or noise. In addition, the duct fan uses a mixed-flow design using a stator blade and dual hydrodynamic wind circles. This gives it a high static pressure rating, enabling it to deliver airflow even in applications where air movement is being restricted. The motor houses dual ball bearings rated at 67,000 hours which allows the duct fan unit to be mounted in any direction. The unit is IP44 rated to be highly resistant to dust and liquids, and performs well even in harsh environments.

• Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
• Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.
• Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
• Kit also includes corded sensor probe, AC power plug, two duct clamps, and required mounting hardware.
• Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball

User questions & answers

Question:	Where is the humidity sensor? Is it on the sensor probe that also does temp
Answer:	Hello, Thank you for taking the time to reach out to us. Yes, the humidity sensor detector will be on the same cord as the temperature probe. Kind regards, AC Infinity
Question:	When unplugged and plugged back in will it return to the same speed as before? I want to add a switch to the outlet
Answer:	I just tried it because of your question, yes it does, but I think you're asking about a timer situation, I would say that you shouldn't bother with a timer, the reason to get this fan over others is the programmability, this thing self adjusts its own speed based on the high/low temp and the high/low humidity that you enter, the power used to run it is very small.
Question:	Humidity and temperature way off does anybody else have this problem? Can it be fixed
Answer:	If all of you that have problems with these would read the instructions you can calibrate both temp and humidity as well as fix any problem with your fan not working it’s probably not turned on or is in the wrong setting check the instructions before blaming the unit these things are great in my opinion
Question:	What are the cfm rating on it
Answer:	Hello there! Thank you you for taking the time to reach out to us with your product question! The CFM rating for the CLOUDLINE T6 is 351 CFM. Also, for your reference, I have included all technical data associated with the T6 (please see below): Product Identification Manufacturer AC Infinity Inc. Product Name CLOUDLINE T6 Product Model AI-CLT6 UPC Code 854759004792 Product and Mounting Dimensions - Fan Unit Total Dimensions 7.87 x 12.60 x 8.35 in. (21.2 x 32.0 x 20.0 cm) Mounting Hole-To-Hole Distance 3.15 X 2.36 in. (8.0 x 6.0 cm) Screw Hole Size Ø 0.236 in. (Ø 0.6 cm) Cord Length 144 in. (12 feet) Product and Mounting Dimensions - Controller Total Dimensions 5.20 x 3.11 x 1.10 in. (13.2 x 7.9 x 2.8 cm) Backside Enclosure Dimensions 4.41 x 2.68 in. (11.2 x 6.8 cm) Required Mounting Hole 4.48 x 2.76 in. (11.4 x 7.0 cm) Hole to Hole Distance 4.71 x 2.64 in. (12.0 x 6.7 cm) Screw Hole Size Ø 0.157 in. (Ø 0.4 cm) Display Size 2.25 x 1.25 in. (4.7 x 3.2 cm) Cord Length 72 in. (6 feet) Thermal Probe Length 72 in. (6 feet) Mounting Template Installation Manual PDF Product Performance and Technical Specs Total Airflow 351 CFM Total Noise 32 dBA Static Pressure 300 Pa Operating Voltage 24V DC Power 40 W Current 1.67 A Wall Adapter Input 100 to 240V AC Operating Humidity 35 to 85% RH Operating Temperature 14 to 230°F Ingress Protection IP 44 Fan Bearings Dual Ball L10 Life Expectency 67,000 Hours Fan Quality Approvals UL, CE, TUV, RoHS Thank you for your question! Kind regards, Andrew Avila AC Infinity

Product features

A Quieter and Smarter Inline Fan

The new CLOUDLINE series contains a cutting-edge Electronically Commutated (EC) motor, controlled using precise electronic pulses and smart programming. This enables the inline fan to operate considerably quieter, and reach low speeds without generating noise or heat. The EC motor is also twice as energy efficient and can save up to 40% in energy costs, paying for itself in the long run.

Smart Programming

T-series models include a programmable controller with precise temperature and humidity sensors located on the 12-foot corded probe.

Quiet PWM Motor

Each fan uses a quiet, energy-efficient EC motor controlled using Pulse Width Modulation (PWM). Dual ball bearings allow for omnidirectional mounting.

Mixed-Flow Design

Featuring a mixed flow design, the fans maintain peak performance in high static pressure environments. Ingress-protected against dust and liquids.

Plug and Play

The complete kit includes the inline fan unit, controller, user manual, and everything needed to mount the fan and power it through an outlet.

CLOUDLINE 4-Series

A CLOUDLINE T4 plus CLOUDLINE S4 system can be linked to the same smart controller, and used in conjunction for a total of 410 CFM airflow. This set-up is ideal for ventilating smaller grow tents and cooling AV rack cabinets.

CLOUDLINE 6-Series

A CLOUDLINE T6 plus CLOUDLINE S6 system can be linked to the same smart controller, and used in conjunction for a total of 804 CFM airflow. This set-up is ideal for large grow tents, AV closet cooling, and boosting airflow for HVAC projects.

MIX and MATCH

The same controller can connect CLOUDLINE fans of different sizes, to share the same programming. For example, an exhausting CLOUDLINE T6 with a filter can share the same controller as an intaking CLOUDLINE S4, to balance static pressure.

• POWERFUL AIR FLOW: Heavy hitting blower with a fan speed of 2450 RPM for an air flow of 440 CFM. Moves air through your target location efficiently for optimal ventilation.
• RUNS SMOOTH AND QUIET: Powerful fan puts out only 50 dB noise level.
• DURABLE BUILD: Galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.
• HIGH TECH DESIGN: The aerodynamically designed centrifugal impeller of this unit delivers strong air flow with a disproportionately low sound profile.
• VERSATILE APPLICATIONS: Ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms. NOTICE: Without speed controller.

User questions & answers

Question:	Does this have a UK plug
Answer:	No, just american 120v flat 2 pin plug
Question:	Can i use this with my own fan control? ie i want to put it on wifi switch with dimmer so i can adjust speed
Answer:	It's a regular induction motor with no special circuits. If you can control a box fan or ceiling fan with the same method I don't see why you cant do it here.
Question:	What's the depth of the fan? It shows height and width but not depth
Answer:	About 6"-8"
Question:	my fan is starting to make noise..is it possible to take it apart and grease the bearings
Answer:	It could be the fiber washers need replacing. The fan can be easily disassembled. I like to use 3 in 1 oil on all metal contact parts (sparingly). Just like any machine, these need proper maintenance. Be sure to DISCONNECT POWER before doing anything.

Product features

VIVOSUN 6 Inch 440 CFM Inline Duct Fan

VIVOSUN inline duct fan helps with ventilation issues. This fan is built durable, runs smooth and quiet. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.

Powerful but Quiet Airflow

1. Heavy hitting blower with a 440 CFM capacity
2. Fine-tuned for minimum vibration
3. Fan speed of 2450 RPM moves air through your target location efficiently for optimal ventilation
4. Add a compatible 6-inch VIVOSUN silencer to your system to handle noise from displaced air and further reduce the total noise level from your ventilation system

• EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2550 RPM for an air flow of 390 CFM. Moves air through your target location efficiently for optimal ventilation
• LOW NOISE LEVEL: Durable plastic fan housing and blades for extremely low noise(<37 dB); Variable speed controller for easy fan speed adjustment.
• EASY INSTALLATION: Removable duct ends with locking tabs for quick removal and easy maintenance and a cord length of 5.4 feet for hassle free setup.
• VERSATILE APPLICATIONS: Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control.
• NOTE: Comes with an installation bracket indicating the direction of the airflow. Max Ambient Temp is 104℉ / 40℃

User questions & answers

Question:	Would the 4" fan work ok if I used an adapter and connected it to a 2" pipe? Would the extra resistance damage the motor
Answer:	Maybe. This is actually for a 6" duct, so that may be even more of an issue.
Question:	Would the 4" fan work ok if I used an adapter and connected it to a 2" pipe? Would the extra resistance damage the motor
Answer:	I would not reduce it that much.. buy a 2 inch fan
Question:	Do you have in 230v 60hz
Answer:	No, 120v
Question:	is it really quiet
Answer:	I have the 8" -- it is NOT quiet at all. 75dBA at a meter when set full speed; and still 68dBA when set full minimum speed. Nowhere close to the 40dBA spec they claim.

Product features

VIVOSUN 6 Inch 390 CFM Inline Duct Fan with Speed Controller

VIVOSUN inline duct fan helps with ventilation issues. This fan is built durable, runs smooth and quiet. Durable plastic fan housing and blades for extremely low noise; Variable speed controller for easy fan speed adjustment.

Features

• Diameter: 6 inch
• Power Supply: 110/120 V
• Power: 67 W
• Current: 0.55 A
• Speed: 2550 RPM
• Air Flow: 390 CFM
• Noise Level <37 dB
• Max Ambient Temp is 104℉ / 40℃.

Application Scenarios

Used as intake fan to bring fresh air into grow rooms; Also used as exhaust fan in smaller setups with LEDs or Lights under 600W.

• EFFICIENT FAN - Combines the features and benefits of axial and centrifugal fan, effectively circulates air for room ventilation and odor purification; Please be aware that the value of air flow is the maximum tested at ZERO atmospheric pressure
• EASY ASSEMBLY - Features with lightweight, durable and UV resistant plastic housing guarantees long-term use; Simply remove the duct ends with locking tabs for quick installation and easy maintanance; Universal mounting bracket for direction of airflow indicating
• SPEED CONTROLLABLE - A variable speed controller designed in the 5.4 feet power cord, its three speed switch enables fan to run at low, medium and high speed, you can adjust it to desired airflow level according to your requirement
• QUIET OPERATION - The durable fan blades revolves smoothly and powerfully, which helps collect airflow volume and cut noise output; A less than 31 dB noise level does not have any harm and will not disturb your work
• MULTI APPLICATIONS - Help you maintain a healthy grow room by quietly and efficiently moving large volumes of air throughout your ventilation system; Ideal solution for multi-purpose use in residential and commercial ventilation

User questions & answers

Question:	Can this be used for an indoor spray painting booth
Answer:	Hi, this heater does not make a beeping sound when changing settings. Thank you.
Question:	Are these fans "booster" fans or are they tight enough to actually pull air
Answer:	We are heating a room that is about 500sq.ft. The temp outside is about 32 to 45 degrees. The room temp.is about 68. We also used a little oil heater sometimes
Question:	So what is a good recommended fan to push 10 of the 1000 watt HPS
Answer:	Watt are equal to Volts x Amps, so Amps are equal to Watts/Volts. Wall outlets in the U.S. are at 120 volts. Hence if the heater draws the rated wattage, 750/120 = 6.25A on Low and 1500/120 = 12.5 Amps on High.
Question:	are these reversible? any way to wire these to switch direction
Answer:	Yes and no. The unit produces X amount of heat for either high or low setting; you can't change that. The thermostat only controls run time. If you move air through it faster, the air coming out will be less warm. So for example... Say the air coming out is normally 90 degrees. If you speed up the air flow, then the air coming out might only be 70 degrees. In theory, you could "tune" the system with a small fan to get faster circulation of 80 degree air. You'd have to find a fan size and speed that gives you the results you are looking for. As already stated by others, a ceiling fan on low will get the warmth off the ceiling and push it down for better overall circulation.

Product features

VIVOHOME 6 Inch 395 CFM Black Round Exhaust Inline Duct Fan

• Material: Plastic
• Color: Black, Red
• Air flow range: 296(±10%) cfm ~ 395(±10%) cfm
• Current: 0.55A
• Speed: 2550rpm
• Frequency:60Hz
• Power: 67W
• Package Dimensions: 13"L*10"W*10"H
• Item Weight: 7lbs
• Package Include: 1 x Inline Ventilation Duct Fan, 1x Mounting Bracket, 1 x Manual Instruction

Balanced Blades Ideal For Air Supply & Venting Air Exhaust

1.Combines the features and benefits of axial and centrifugal fan

2. Maintain a healthy grow room by quietly and efficiently move large volumes of air throughout your ventilation system

3. Features with lightweight, durable and UV resistant plastic case and universal mounting bracket for easy replacement

4. Variable speed controller with three speed switch, so you can adjust it according to your requirement

5. Low noise which do not have any harm and will not disturb your work

Product description

Warnings:

1. Follow the wiring diagram for installation and ensure the device is connected to the ground if required. Use of an extension cord is not recommended. A poor connection may cause damage to the fan.

2. Exercise caution when moving the fan. Do not lift or carry the fan by its blades, as this may cause the device to produce more noise during operation.

3. Do not remove components of the device, as doing so may affect the fan’s safe operation, air-tight seal, balance, or other important properties.

4. Install the fan only as indicated in the user manual. Any other methods of installation may affect its service life.

5. The fan, especially its blades and electrical components, should be kept out of the reach of children. Children must not operate the fan without supervision from an adult.

• POWERFUL AIR FLOW: Heavy hitting blower with a fan speed of 2450 RPM for an air flow of 440 CFM. Moves air through your target location efficiently for optimal ventilation.
• RUNS SMOOTH AND QUIET: Powerful fan puts out only 50 dB noise level. Fine-tuned for minimum vibration with a sturdy vegan leather cover that further muffles any sound or vibration.
• DURABLE BUILD: Galvanized steel parts come factory painted to resist atmospheric corrosion from humidity. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.
• HIGH TECH DESIGN: The aerodynamically designed centrifugal impeller of this unit delivers strong air flow with a disproportionately low sound profile. Fitted with a variable speed controller and dual flanges for hassle free hookup
• VERSATILE APPLICATIONS: Ideal for cooling lighting fixtures or controlling hot and humid conditions in grow tents/rooms.

User questions & answers

Question:	Is the variable speed controller continuous or just low-med-hi? what is the cfm at the low end of the range
Answer:	No.
Question:	How many watts would this fan use running it at say half volume using the included controller
Answer:	I believe so. I would also advise you to look for a different heater. The controls are confusing and it doesn’t give off much heat. There are better choices on Amazon.
Question:	Is it discret shipping
Answer:	Approximately 3ft
Question:	How loud is this fan
Answer:	it doesn't if you have Prime.

Product features

VIVOSUN 6 Inch 440 CFM Inline Duct Ventilation Fan

VIVOSUN inline duct fan helps with ventilation issues. This fan is built durable, runs smooth and quiet. Tight, precise construction eliminates rattling and reduces wear and tear to give the element a long life.

Powerful but Quiet Airflow

1. Heavy hitting blower with a 440 CFM capacity
2. Low, 50 dB noise level
3. Fine-tuned for minimum vibration
4. Fan speed of 2450 RPM moves air through your target location efficiently for optimal ventilation
5. Sturdy vegan leather cover muffles any sound or vibration
6. Add a compatible 6-inch VIVOSUN silencer to your system to handle noise from displaced air and further reduce the total noise level from your ventilation system

Product description

Specification:

Diameter: 6 inch

Air Flow: 174 CFM

Speed: 2800 RPM

Voltage: 110-120V

Wattage: 37W



Maintenance:

1. Can not be used in coal mine wells which have methane mixed gas and coal dust explosion hazard.

2. Avoid impact or physical damage of the unit as it will cause premature failure. Should be stored at and used for those places where have no strong impact force and shock.

3. Can not be used for those places where corrosive gas or steam exist.

4. No waveform and current input allowed which may cause damage on motor enameled wire and shorten its service life.

5. Stay away from children.

6. Repairs and Maintenance Notes:

Keep fan in a dry environment

Do not use water or any other liquid cleaning agent, use only a clean brush or a clean dry cloth to wipe away any loose dirt or dust.

Under normal operating conditions, the fan should be cleaned every six months.

• Applications: help to boost airflow in HVAC units to remove exhausts and odors from kitchens & workshops and ventilate basements & attics, etc. Great used as intake fan to bring fresh air into grow rooms.
• Advantages: superior balanced blades for long service life & quiet operation; motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
• High safety: with insulating coating, high safety factor. Portable and lightweight; sufficient 4. 9' grounded power cord.
• Specification: diameter: 6inch; Air flow: 174CFM; Speed: 2800RPM; Voltage: 110-120V; Wattage: 37 W.
• Note: max operating temp of motor is 130℃ / 266℉; max ambient temp is 60℃ / 140℉. If any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.

User questions & answers

Question:	Reading the reviews somebody says 6 inch fan actually measures 4 inches is that true
Answer:	Yes it does..cloth like fabric that wraps around metal carbon filter cage!!

Product features

iPower 6 inch Booster Fan

Specification:

• Diameter: 6 inch;
• Air flow: 174CFM;
• Speed: 2800RPM;
• Voltage: 110-120V;
• Wattage: 37 W;
• Max operating temp of motor is 130℃ / 266℉;
• Max ambient temp is 60℃ / 140℉.

Details

• Superior balanced blades for long service life & quiet operation.
• Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
• With insulating coating, high safety factor.
• Portable and lightweight.

Grow Room

Used as intake fan to bring fresh air into grow rooms. Also used as exhaust fan in smaller setups with LEDs or Lights under 400W.

Bathroom

Help to boost airflow in HVAC units to remove exhausts and odors from bathroom.

Kitchen

Help to boost airflow in HVAC units to remove exhausts and odors from kitchen.

Product description

TOPHORT 6 inch 390 CFM Inline Duct Fan with Speed Controller

Ideal for controlling hot and humid conditions in grow tents/rooms.

This inline duct fan helps with ventilation issues. It is built durable, runs smooth and quiet. Durable plastic fan housing and blades for extremely low noise; Variable speed controller for easy fan speed adjustment.

Features

Balanced blades are ideal for boosting air supply and venting exhaust air.

Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.

Solve air delivery problems without major system rework or expense.

Can be installed in any location, such as greenhouses, tents, etc.

Energy efficient & quiet operation

Lightweight & super easy to install.

Perfect for connecting with carbon filter to circulate purified air in grow tent / green house

Fluted on both ends to receive ducting

Features

Diameter: 6 inch

Power Supply: 110/120 V

Power: 70 W

Current: 0.58 A

Speed: 2400 RPM

Air Flow: 390 CFM

Noise Level <34 dB

Package Contant

1 X 6 Inch Inline Duct Fan

• BASIC PARAMETERS - Powerful blower fan speed : 2400 RPM; Air Flow: 390 CMF . Moves air through your target location efficiently for optimal ventilation
• LOW NOISE - Durable plastic fan housing and blades for extremely low noise(<34 dB); Variable speed controller for easy fan speed adjustment.
• EASY INSTALLATION: Removable duct ends with locking tabs for quick removal and easy maintenance.
• NO MAINTENANCE - Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
• APPLICATIONS - Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control.

User questions & answers

Question:	How long is the cable
Answer:	30 pages and you can add more.
Question:	how humidity resistant is this, are any metal parts exposed? Has anyone used it in high humidity (90%+) environment
Answer:	Hello, the transit was within 4 days. However, we were not pleased with the size and quality so we returned it. Sorry.
Question:	How long is the cord
Answer:	The pages are a nicer construction type paper, with punch holes. There is a reinforcer for the holes, so it will not tear easily. There is no adhesive film over top!
Question:	What’s a good filter for this fan
Answer:	Hello, You can always contact us by sending us a message through Amazon and request additional pages for your wedding guest book. Thanks

Product features

TOPHORT 6 inch 390 CFM Inline Duct Fan with Speed Controller

Balanced blades are ideal for boosting air supply and venting exhaust air.

Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.

Solve air delivery problems without major system rework or expense.

Can be installed in any location, such as greenhouses, tents, etc.

Energy efficient & quiet operation

Lightweight & super easy to install.

Perfect for connecting with carbon filter to circulate purified air in grow tent / green house

Inline Duct Features

-Powerful blower fan speed : 2500 RPM; Air Flow: 800 CMF.

-Diameter: 6 inch

-Power Supply: 110/120 V

-Power: 70 W

-Current: 0.58 A

-Speed: 2400 RPM

-Air Flow: 390 CFM

-Noise Level <34 dB

Durable for Long Term Use

- Excellent exhaust and intake air.

- Low noise and variable speed controller.

- Lightweight and easy to install.

- Multi-Environment.

Button Detail

-ON/OFF Key

-Three levels

•L •M •H

Versatile Application

- Grow Rooms

- Greenhouse

- Basement

- Kichen

User questions & answers

Question:	how long is power cord
Answer:	4-5’ I believe.
Question:	Was this fan designed with fan speed controllers in mind? Will using one increase the noise level and/or shorten the life of this fan
Answer:	Hi Robert,Yes, these inline fans can be used with variable fan speed controllers, but there are two things you need to keep in mind:1. Not every fan speed controller unit will work with this fan. We can guarantee that TerraBloom Variable Fan Speed Controller (sold separately on Amazon) does work with booster fans including this one, however, we can't guarantee that any speed controller on the market will work the same because many of them are designed for larger centrifugal fans and we received feedback from customers that they didn't work. 2. The adjustable speed range of the motor of this booster fan is roughly 20-25%, which means that you can decrease the speed roughly by quarter of the overall power before you will start hearing motor "hum", which is a sign that the fan's motor is not getting enough power to operate as designed. Do not decrease the speed of your booster fan past that point, because if the motor is left "humming" it will decrease the useful life of the unit. You can safely decrease the output of this fan by around 20-25% before the hum will be audible and it will significantly reduce the sound produced by the movement of air though the fan (it will be much quieter!) without putting extra strain on the motor and jeopordizing its useful life. Hope this helps!Best regards,TerraBloom
Question:	How quite is this fan
Answer:	The fan is extremely quiet. I can barely hear it. I'd guess, and it's a guess, maybe 45 decibels. Maybe 1.0 sones
Question:	How many decibels
Answer:	I don't have a way to measure the decibels. I have mine about 3 feet from the exit of my duct work with a thin air filter at the end to keep bugs out. So there isn't much material to muffle the sound but my exact setup is silent when standing 15+ feet away. Otherwise alone the unit sounds like a restroom exhaust fan, just a little more smooth. I hope this helps you, good luck with your project.

Product features

TerraBloom MFIF-6, 6" Inline Fan - 395 CFM Exhaust Duct Fan, Built-in Speed Controller, ETL Listed.

Product description

Fresh air is a crucial component for a healthy harvest. Growing plants transpire water vapor and moisture in the grow room which can cause high humidity that can stunt your plants and destroying your crop. Our inline fan can help you to maintain a healthy grow room by efficiently move large volumes of air throughout your ventilation system. For high-powered ventilation & noise reduction, our inline booster fan runs 50% quieter than leading competitors.

• Specifications: Diameter 6 inch, Speed 2960 RPM, Air Flow 240 CFM, Voltage 110/120V, Power 37W

• Includes 5.8 foot pre-wired 110/120V cord with standard plug

• Upgraded Advantages: Superior balanced blades for long service life & quiet operation

• Motor features a permanently lubricated bearing that operates quietly and requires no maintenance

• Portable and lightweight, easy to install

• Fluted on both ends to receive ducting

• Balanced metal blades are ideal for boosting air supply and venting exhaust air

• Engineered for maximum boost with minimum noise

• Household Applications: Help to boost airflow in HVAC units to remove exhausts and odors from bathrooms & workshops and ventilate basements & attics, etc.

• Grow Room Applications: Used as intake fan to bring fresh air into grow rooms; Also used as exhaust fan in smaller setups with LEDs or Lights under 400-Watt.

• Note: Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉. If any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.

• Hydro Crunch 6" Inline Booster Fan 37-Watt 240 CFM
• 110/120V Standard Plug
• Metal blade, energy efficient and very quiet
• Fluted on both ends to receive ducting
• Light weight and easy to install

User questions & answers

Question:	Where is this made
Answer:	12lbs.., study, I feel completely safe while standing on top step. TY
Question:	made in china? usa
Answer:	29"
Question:	can this fan be connected to a speed controller, like the Cisno
Answer:	Hello, the inside of the top rung on our 6 foot double sided ladder is 12 inches long and 1.5 inches wide. We do also make a red top accessory shelf for our double sided ladders that attaches to the top of the ladder. The red top accessory shelf is 13.5 inches long and 4.5 inches wide. If you have anymore questions feel free to write us back or call us at 909-373-1074. Thank you.
Question:	it says "Fluted on both ends to receive ducting" - so why does the photo show only one end fluted
Answer:	it is an A-frame ladder, not an extension so it will not go any higher.

Product features

4" Booster Fan 15-Watt

100 CFM.

6" Booster Fan 37-Watt

240 CFM.

8" Booster Fan 45-Watt

420 CFM.

Product description

Frequently Asked Questions:

What is included in set with ECMF fan?

1. Fan pre-wired with a 6.5ft long cable and grounded 3-prong plug. 2. Variable speed controller. 3. Speed controller cable (16ft long). 4. Installation Hardware (Screws and Anchors).

How to adjust ECMF series fan speed?

Each ECMF fan is supplied with a variable speed controller. Speed controller is attached to the fan via the supplied cable. When connected, supplied speed controller allows users to select any speed between 0-100% of output according to the preferred use/noise level. If the speed controller is disconnected, ECMF fan will automatically work at 100% output. Speed Controller connects to the fan via a 16 Ft wire, which is independent from the power cable.

Will other Rheostat Speed Controllers work with ECMF fan?

Speed controllers designed for AC motors, such as typical rheostat speed controllers, will not work with ECMF series fans. If you need a replacement of ECMF fan speed controllers please contact TerraBloom’s customer service.

What are the requirements for the fan's operating environment?

ECMF fan can be operated in the environments with temperatures between 15°F(-10°C) to 140°F (60°C) and humidity levels not exceeding 90%. ECMF series fans have IPX4 IP Rating.

What type of ball bearing used in ECMF series fans?

ECMF fans are built with heavy-duty dual ball bearings rated for up to 70,000 hours of operation.

Can ECMF fans be used for boost airflow in heater ducts?

ECMF can be installed in heating ducts with most modern home furnaces, however, it is important to ensure that the air temperature in the duct is not over 140 °F. Please note, fire places and fire-based heaters supply air at over 140°F, which will cause ECMF fan to trigger overheat safety switch and/or cause deformation of the impeller.

• TerraBloom EC duct fans are used in indoor grow facilities and vertical farms, heating and cooling transfer, commercial drying and air filtration applications. Our inline blowers can also create negative pressure environments, simulate wind, exhaust odors and smoke as well as intake fresh air from outdoors
• Built with cutting edge brushless EC Motor and dual jet type blades, this blower delivers 350 CFM airflow rate using just 40 Watts at max speed. It translates into only $101 annual cost of 24/7 operation at max speed using $0.29 average cost per KWH. Our fans don’t “purge” or waste electricity at lower speeds
• Our EC fan gives you a unique flexibility of controls – choose any speed from 0 to 100% using the included variable speed controller without creating background noise or hum at low speeds. Or choose to upgrade to a wireless remote control (Model: ECMF-WR) or intelligent thermostat speed controller with temperature programming (Model: SC-ECMF). This fan also supports PWM and 0-10V controllers via 3.5mm audio port
• Coated steel housing resists rust, protects motor and blades from accidental damage and harsh elements to reduce maintenance in demanding applications. This fan has IPX4 ingress protection rating
• Duct Diameter: 6”(150mm) * Airflow: 350 CFM * Power 40W * Noise: 31-60 dBA * Pressure: 500 Pa * Bearings: Dual Ball * Size: 7.3 x 6.5 x 6.9 in. * ETL Listed * 2 Year Warranty

Product features

100% Controllable Quiet EC Motor

Built with a state-of-the art EC Motors, these super-efficient fans deliver an unprecedented amount of airflow using 40-75% less power compared to AC fans. Controlled by a computer chip on board these motors allow for precise speed adjustment without energy waste and heat.

Compact Metal Case

We know that vertical space in a grow tent is always tight. That’s why we build our fans with compact and airtight IPX4 ingress rated metal casing. Our units are built to handle high pressure applications with long ducts and carbon filters, while preserving the room for your light fixtures and budding flowers.

ETL Listed for UL 507

Cultivation with scale requires custom solutions. Our fans can be integrated into your custom automated environment management systems which support PWM or 0-10V signals. Our fans are ETL listed and conform to UL standards 507, Certified to CSA Standard C22.2 No 113 for United States and Canada.

100% Speed Variable Dial (Included)

Our fans are 100% speed controllable. Each set includes a continuous variable dial controller, which allows you to select any speed without any extra hum or noise.

6 Speed Wireless Remote (Optional)

We offer an optional wireless remote controller, which works through walls and ceilings from up to 50ft distance. Select from 6 speed options with 16% speed step.

Programable 6 Speed Thermostat (Optional)

SC-ECMF thermostat speed controller allows you to program the settings for automatic speed changes. You can select your desired temperature and ambient speed level.

8 Speed Digital PWM Controller (Optional)

PWM digital speed controller with 8 speed options (12.5% speed step). No guessing, select your desired speed level precisely and accurately with this easy to use one button controller.

Product description

power 6" 240 CFM booster fan inline Duct vent blower with variable speed controller adjustor

• Fan specification: diameter: 6inch; Air flow: 240 CFM; Speed: 2950 RPM; Voltage: 110/120V; Wattage: 37W; Noise level: 48 db.
• Variable fan speed controller: it will correctly and precisely adjust the speed of your duct and inline fans. Durable 3-pole grounded plug construction, no extra wires to deal with.
• Advantages of fan: superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.
• Application: help boost airflow in HVAC (heating, ventilation and air conditioning) units to remove exhausts and odors from grow rooms, kitchens, bathrooms, workshops, basements, attics etc.
• Package including: 1 pack 6inch booster fan, 1 pack variable fan speed controller.
• Power source type: Corded Electric

User questions & answers

Question:	If attached to the back of an air conditioner how much heat can it tolerate
Answer:	Pretty sure no. We used a ballpoint pen and no smudges.
Question:	Why doesn't the speed controller work? It only works on high and the edge of medium/high
Answer:	Hi Jennifer, Thank you for your interest in our guest books! This Unlined Guest Book is 10" w x 8" h. The book is horizontal orientation. I hope this helps & please let me know if you have any further questions or concerns I can answer. Thank you, Blue Sky Papers
Question:	If I put a plug splitter on the controller can I control 2 of these fans
Answer:	Hi Dale, I am not able to add more photos. I am adding a link to our webpage to will show you the inside though. http://www.blueskypapers.com/media//unlined-guest-book-pages-we_1.jpg
Question:	can this fan push air through a 12 by 12" filter, plus open a flapper damper
Answer:	Hello! Thank you for your interest. Yes, the pages inside this unlined style are completely blank. With the traditional guest books, the spine is not made to accommodate dimensional items such as photos without the possibility of splaying or yawning when closed (meaning it may not lay flat when closed). Therefore, if you wanted a book to add photos to, you would need an album style. Albums have spacers built into the spine that allow for dimensional items & will still be able to lay flat when closed. Hope this helps!Thank you, Blue Sky Papers

Product features

iPower Booster Fan with Variable Speed Controller

Help boost airflow in HVAC (heating, ventilation and air conditioning) units to remove exhausts and odors from grow rooms, kitchens, bathrooms, workshops, basements, attics etc.

Package including:

1-pack 6 inch booster fan, 1-pack variable fan speed controller.

iPower Booster Fan Inline Duct Vent Blower

Specification:

Diameter: 6inch; Air flow: 240 CFM; Speed: 2950 RPM; Voltage: 110/120V; Wattage: 37W; Noise level: 48 db.

• Superior balanced blades for long service life & quiet operation.
• Motor features a permanently lubricated bearing that operates quietly and requires no maintenance.

Note:

If any other materials/particles get into the duct fan and get the blade stuck, users are to turn off the power immediately, clean it up, turn the power back on when handled properly.

iPower Variable Fan Speed Controller Adjuster

Features:

• 4 Options: Off, High, Medium, Low
• Compatible with ALL Brush Type Motor Fan
• Adjust Range: 50%-100%

Note:

• Do Not apply this item to fan of Shade-Pole Motor and Brush-less Motor
• Do Not apply this item to fan that more than 350W Power Wattage
• To avoid the risk of burning out the fan motor, controller Does Not adjust below 50%