10 best swiffer ceiling fans

Swiffer, a well-known brand for cleaning products, offers a range of cleaning tools and supplies for various household needs. While Swiffer is primarily recognized for its floor cleaning products, it does not specifically manufacture a product known as "Swiffer ceiling fans." However, Swiffer does offer cleaning tools and products that can be used for cleaning ceiling fans effectively. Here's how you can use Swiffer products for this purpose:

Swiffer Dusters: Swiffer offers disposable dusters that are designed to attract and trap dust and allergens. These dusters come in various sizes, including extended handle versions. To clean a ceiling fan, you can attach a Swiffer Duster to the extendable handle and use it to reach and dust the fan blades. The electrostatic fibers on the duster effectively capture dust and prevent it from falling onto the floor or furniture.
Swiffer Extender Handle: Swiffer provides extension handles that can be used with various Swiffer cleaning products, including dusters and mop pads.These extendable handles can be a handy tool for reaching high places like ceiling fans safely and effectively.
Swiffer Dusting Spray: Swiffer also offers dusting sprays that can be used in conjunction with their dusters. Applying a small amount of dusting spray to the duster can enhance its dust-attracting capabilities and help you clean ceiling fans more efficiently.

Here's a general process for using Swiffer products to clean ceiling fans:

Attach a Swiffer Duster to the extendable handle or use a Swiffer Extender Handle with your chosen Swiffer cleaning tool.
Extend the handle to reach the ceiling fan blades safely.
Gently run the duster over the fan blades to collect dust and dirt.
As you clean, the Swiffer Duster will trap the dust and prevent it from scattering.
Dispose of the used Swiffer Duster when you're finished, or wash and reuse it if it's a washable version.

While Swiffer may not have a dedicated product named "Swiffer ceiling fan cleaner," their existing cleaning tools and supplies can be effectively used to clean ceiling fans and other hard-to-reach areas in your home, helping you maintain a clean and dust-free environment.

Below you can find our editor's choice of the best swiffer ceiling fans on the market

Swiffer Dusters Heavy Duty Extender Starter Kit, 13 Piece Set (1 Handle, 12 Dusters)

Swiffer

Based on 14 reviews Check latest price

Product description

Swiffer Dusters Super Extender Handle extends up to 3 feet allowing you to reach more areas of your home and Trap plus Lock up to 3x more dust and allergens. 360 degrees of specially coated fibers grab onto dust and don't let go. They are uniquely designed to Trap plus Lock dust from every direction. vs. feather duster, common inanimate allergens from cat and dog dander and dust mite matter

Extender Handle Starter Kit comes with 12 Heavy Duty Duster Refills
Extender Handle is able to extend up to 3ft, helping you get hard to reach areas
Swiffer Heavy Duty Dusters TRAP plus LOCK up to 3x more dust and allergens. vs. feather duster, common inanimate allergens from cat and dog dander and dust mite matter
Specially coated fibers grab onto dust and don't let go. Flexible
Great for use on fans, bookcases, light fixtures, and any surface that used to be out of reach. Material, plastic

User questions & answers

Question:	Can't seem to keep the swifter on the wand. Any suggestions
Answer:	After I slide the plastics through the grooves I make sure to tie it at the bottom at the very last two strands , that way when I’m dusting in hard to reach or tight areas the duster is not left behind
Question:	is duster washable
Answer:	No, the duster is disposable, keep the handle. They last through more than just one dusting though. Love mine.
Question:	Will this pick up all dirt off fan or will it push it to the floor
Answer:	It will hold on the pad not on the floor. Anthony.H Burlington, MA
Question:	Does this use the same short handle as the 180? I'm not seeing any indication anywhere beyond the extensions
Answer:	All handles will fit the Swiffer 180 and 360 Dusters. Our starter kits contain 1 extendable Duster handle.

Product features

All-Around Fibers

360 degrees of fluffy fibers with Dust Lock Adhesive that trap and lock more dust and allergens*.

*inanimate allergens from pet dander and dust mite matter.

Swivel Head

Pivots and locks into four different positions.

Extendable Handle

Three extra feet of clean.

Flexibility

Gets into the hard-to-reach places. What can we say, it's flexible.

Ergonomic Handle

The easy grip is, well, an easy grip.

Swiffer Duster Super Extender Handle Starter Kit, 6 Heavy Duty Refills

Swiffer

Based on 4 reviews Check latest price

Product description

Swiffer Dusters Super Extender Handle extends up to 6 feet allowing you to reach more areas of your home and Trap + Lock up to 3x more dust & allergens. Duster offers 360 degrees of specially coated fibers grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from every direction. vs. feather duster, common inanimate allergens from cat and dog dander & dust mite matter

60% More Refills vs standard Duster Super Extended Handle Starter Kit pack
Super Extender Handle Starter Kit comes with 6 Heavy Duty Duster Refills
Super Extender Handle is able to extend up to 6ft, helping you get to hard to reach areas
Swiffer Heavy Duty Dusters TRAP + LOCK up to 3x more dust & allergens. vs. feather duster, common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go

User questions & answers

Question:	Can this dust the small slats on the air conditioning vents on ceilings
Answer:	We were not aware of this! Thank you so much for making us aware. We will address the situation. Sincerely, Moon’s Menagerie
Question:	I know the handle extends to six feet. How long is it not extended
Answer:	Yes it comes with one handle and 5 pads
Question:	Which do we use for refills
Answer:	THERE ARE 2 EAN NUMBERS. ONE REFERS TO A STARTER KIT AND THE OTHER A CASE OF SIX. THIS IS SUPPOSED TO BE SIX FULL SET/KITS; A TOTAL COUNT OF SIX BOXES. THE (PACK OF 6) DOES NOT REFER TO THE 1 HANDLE AND 5 DUSTERS. THESE ARE TWO DIFFERENT COMPONENTS; APPLES ORANGES. IF IT DID, IT WOULD SAY 1 HANDLE AND 5 DUSTERS LIKE ON THE BOX. ANYONE SAYING ANYTHING ELSE DOES NOT UNDERSTAND THE PROCESS OR MAY BE A SELLER. IT IS NOT ABOUT WHAT YOU GOT. IT IS ABOUT WHAT YOU WERE SUPPOSED TO GET. THE (PACK OF 6) MEANS SIX FULL KITS/SETS OR BOXES. RESEARCH THE EANS AND THE AMAZON LISTING PROCESS. IF YOU GOT LESS THAT 6 FULL BOXES, EACH WITH A HANDLE AND 5 DUSTERS, THEN YOU RECEIVED A PARTIAL ORDER AND WERE RIPPED OFF. WE PRESSED THE ISSUE AND THE SELLER WENT TO AMAZON AND CAME BACK SAYING WE WERE RIGHT. WE WERE REFUNDED AND AFTER THAT HE ENDED HIS LISTING.
Question:	How big is this on the smaller setting (ie if you don’t use the extender
Answer:	THERE ARE 2 EAN NUMBERS. ONE REFERS TO A STARTER KIT AND THE OTHER A CASE OF SIX. THIS IS SUPPOSED TO BE SIX FULL SET/KITS; A TOTAL COUNT OF SIX BOXES. THE (PACK OF 6) DOES NOT REFER TO THE 1 HANDLE AND 5 DUSTERS. THESE ARE TWO DIFFERENT COMPONENTS; APPLES ORANGES. IF IT DID, IT WOULD SAY 1 HANDLE AND 5 DUSTERS LIKE ON THE BOX. ANYONE SAYING ANYTHING ELSE DOES NOT UNDERSTAND THE PROCESS OR MAY BE A SELLER. IT IS NOT ABOUT WHAT YOU GOT. IT IS ABOUT WHAT YOU WERE SUPPOSED TO GET. THE (PACK OF 6) MEANS SIX FULL KITS/SETS OR BOXES. RESEARCH THE EANS AND THE AMAZON LISTING PROCESS. IF YOU GOT LESS THAT 6 FULL BOXES, EACH WITH A HANDLE AND 5 DUSTERS, THEN YOU RECEIVED A PARTIAL ORDER AND WERE RIPPED OFF. WE PRESSED THE ISSUE AND THE SELLER WENT TO AMAZON AND CAME BACK SAYING WE WERE RIGHT. WE WERE REFUNDED AND AFTER THAT HE ENDED HIS LISTING.

Swiffer 360 Dusters Extendable Handle Starter Kit, 3 Count Duster Refill

Swiffer

Based on 4 reviews Check latest price

Product description

Swiffer 360° Heavy Duty Dusters TRAP + LOCK up to 3x more* dust & allergens.** 360 degrees of specially coated fibers grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from every direction. *vs. feather duster, **common inanimate allergens from cat and dog dander & dust mite matter

Swiffer 360° Dusters TRAP + LOCK up to 3x more* dust & allergens.** *vs. feather duster, **common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from every direction.
Use with Swiffer Dusters short handle or Swiffer Dusters extendable handle
Great for dusting electronics,dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior

User questions & answers

Question:	Do I need to buy the duster, too
Answer:	The Swiffer duster refills. The same refill that you use for the regular Swiffer duster.
Question:	how long does it extend
Answer:	The Swiffer is capable of holding a LOT of dust, But if your ceiling fan is anything like my ceiling fan, it doesn't get dusted very often. When I haven't been using the fan and haven't dusted it in a while, the Swiffer pad can get overloaded and just push the dust it cant grasp off onto whatever is below. But I take responsibility for that, for not remembering to dust it often enough.
Question:	Do the 180 dusters fit this handle
Answer:	Either type will work—it just depends on what you’re dusting. The 360’s are awesome, collecting dust all the way around, however, they are more expensive. The regular ones are “fluffy-flat” (obviously, a technical term, ha, ha). They work great for most uses. I mostly use the regular ones, for most jobs. I do like to have some of the “360’s” available though, because for some jobs, they are just better. (Note: As I was proof-reading my answer, it hit me that it sounds like an ad! Arg! Nope, not paid to provide an answer, just find these super convenient.)
Question:	Can the extender be used as a short length duster? Should I buy the duster with just the short handle in addition
Answer:	You do not have to buy the regular duster first. The extender kit is a complete handle, ready to use.

Product features

Swiffer 360 Dusters Extendable Handle Starter Kit

Swiffer Heavy Duty Dusters Trap + Lock more dust & allergens. 360 degrees of specially coated fibers grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from every direction.

Flexibility

Gets into hard-to-reach places. What can we say, it's flexible.

Ergonomic Handle

The easy grip is, well, an easy grip.

Swiffer, PGC82074, 360 Dusters Extender Kit, 1 / Kit, White

Procter & Gamble

Based on 437 reviews Check latest price

Product description

Swiffer 360 Degree Dusters remove up to 90 percent of allergens from cats, dogs and dust mites. Thousands of soft, fluffy fibers clean deep into grooves and crevices to trap and lock dust and allergens better than regular dry cloths. All-around design has 50 percent more fibers than regular Swiffer Dusters, allowing it to lock dust away for good. Great for both small places and large areas. Swiffer Duster 360 Kit includes one extendable handle and three disposable dusters. Flexible plastic handle offers added reach.

Dust Lock Adhesive that cleans deep into grooves
Extends up to 3' to trap and lock up to 3 times more dust than a feather duster
Pivots and locks into 4 different positions
Ergonomic handle
Get into hard-to-reach places

User questions & answers

Question:	Can you use the blue duster refill pads on this handle? Thanks
Answer:	Yup, they both fit!
Question:	is there an extension for the swiffer mop handle
Answer:	Dear Customer. This product comes with its handle for our knowledge it has no extension. thank you and stay safe
Question:	Does this duster go flat to clean under stove and refrigerator
Answer:	It fits under my stove, but not refrigerator.

Swiffer Dusters Surface Refills, Multi, 18 Count (Pack of 1), Unscented

Procter & Gamble - Pampers

Based on 20 reviews Check latest price

Product description

Swiffer Multi-Surface Dusters TRAP + LOCK dust & allergens. Made with specially coated fibers that grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from even the tight spaces in your home. common inanimate allergens from cat and dog dander & dust mite matter

Swiffer Dusters TRAP + LOCK dust & allergens common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go. Flexible
Uniquely designed to Trap + Lock dust from even the tight spaces in your home.
Compatible with all Swiffer Dusters short handle or Swiffer Dusters extendable handle
Multi-surface and great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior
Instructions: Click: Push the rounded ends together until you hear a click. Fluff: Using both hands, shake ends of duster up and down quickly in a see-saw motion. Slide: With the 'non-fluffy' end of the duster toward you, slide the forks into the white sleeves

User questions & answers

Question:	Do I have to angle it cause when I use this to dust my ceiling fan, it does grab some but pushes most off the blade
Answer:	These are not scented though I think you can get some that are.
Question:	Absolutely unscented? The ones in the store have a scent
Answer:	You sure can!
Question:	It says 180 but its a picture of 360. Which one is it
Answer:	Fluff it for 30 to 40 seconds until it’s all fluffy !
Question:	Does this come with an handle
Answer:	IN a product that is advertised as, "11 count", you can generally expect to get about 11 of the item.

Product features

Swiffer Dusters Cleaner Refills

Swiffer Dusters Trap + Lock dust and allergens*. They are uniquely designed to Trap + Lock dust from even the tight spaces in your home.

*Common inanimate allergens from cat and dog dander and dust mite matter.

At a Glance

Specially coated fibers grab onto dust and don't let go.

Features and Benefits

Great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior.

Swiffer 360 Dusters, Heavy Duty Refills, 11 Count

Procter & Gamble - Pampers

Based on 14 reviews Check latest price

Product description

Swiffer 360 Degree Heavy Duty Dusters TRAP + LOCK up to 3x more dust & allergens. 360 degrees of specially coated fibers grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from every direction. vs. feather duster, common inanimate allergens from cat and dog dander & dust mite matter

Swiffer 360 Degree Dusters TRAP + LOCK up to 3x more dust & allergens. vs. feather duster, common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from every direction.
Compatible with all Swiffer Dusters short handle or Swiffer Dusters extendable handle. Note: Product is only the refills for Swiffer Dusters and does not include the handle
Great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior

User questions & answers

Question:	Are they scented
Answer:	These are very absorbent. We love these towels
Question:	Can you use with the original Swiffer stick
Answer:	Yes. I have a housecleaning setvice and I only use these products. They don't scratch or damage surfaces. Streaking depends on the product you are using with the rag. Some products streak no matter what they claim. Personally I often just use water which never streaks unless you are using a dirty rag. Also, if you use those dryer sheets, they can leave a slight residue (that you can't feel or see) which can cause streaking. I highly recommend these rags. Been using for years and they are still good.
Question:	should I fluff it or should I pull apart the little white things one by one
Answer:	These can be used for washing and drying dishes.
Question:	How many are included
Answer:	They do an excellent job with the right products. I clean houses and RVs for a living and I always bring these rags with me to clean with. I clean interior RV windows with just water and these rags. Sometimes I do a last wipe with a paper towel. Streak free every time! Love them.

Product features

Trap + Lock

360 degrees of specially coated fibers trap more dust and allergens*

*Common inanimate allergens from cat and dog dander & dust mite matter

Versatility

Can be used virtually anywhere and fits into tight spaces.

Flexibility

Gets into hard-to-reach places. What can we say, it's flexible.

Swiffer 360 Dusters Multi Surface Pet Refills, Febreze Odor Defense, 11 Count

Swiffer

Based on 3 reviews Check latest price

Product description

Swiffer Pet Heavy Duty Dusters with Febreze freshness TRAP + LOCK up to 3x more* dust & allergens.** 360 degrees of specially coated fibers grab onto dust & don't let go. *vs. feather duster, **common inanimate allergens from cat and dog dander & dust mite matter

Febreze Freshness Odor Defense
Swiffer Pet Heavy Duty Dusters TRAP + LOCK up to 3x more* dust & allergens.** *vs. feather duster, **common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from every direction.
Use with Swiffer Dusters short handle, Swiffer Dusters extendable handle, and Swiffer Super Extender Handle
Great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior

User questions & answers

Question:	Can the swifter dusters be used more than once
Answer:	Yes I use mine more than once. I have to shake off the cat hair sometimes but I use them several times.
Question:	Does this fit the regular duster handle
Answer:	Yes they fit just like the smaller blue ones.
Question:	How many are in each box
Answer:	11
Question:	I don’t understand the pricing. $11+ for 1 pkg, $65+ for 2 pkgs
Answer:	I don’t know keep looking

Product features

Swiffer 360 Dusters Multi Surface Pet Refills, Febreze Odor Defense

Swiffer Pet Heavy Duty Dusters with Febreze freshness TRAP + LOCK up to 3x more dust & allergens. 360 degrees of specially coated fibers grab onto dust & don't let go. Febreze freshness odor defense reduces pet odor.

All-Around Fibers

Swiffer Pet Heavy Duty Dusters TRAP + LOCK up to 3x more dust & allergens

Flexibility

Gets into hard-to-reach places. What can we say, it's flexible.

Swiffer 360 Dusters Refills 6 Count (Pack of 2)

Swiffer

Based on 452 reviews Check latest price

Product description

Swiffer 360 Degree Dusters TRAP + LOCK up to 3x more dust & allergens. 360 degrees of specially coated fibers grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from every direction. vs. feather duster, common inanimate allergens from cat and dog dander & dust mite matter

Swiffer 360° Dusters TRAP + LOCK up to 3x more* dust & allergens.** *vs. feather duster, **common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from every direction.
Use with Swiffer Dusters short handle or Swiffer Dusters extendable handle
Great for dusting electronics,dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior
Traps and locks up to 3X more dust than a feather duster
Clever all-around design features 50% more fibers than regular Swiffer Dusters

User questions & answers

Question:	can you use a dusting spray as well
Answer:	Yes. The duster will pick up the spray along with the particles, but it may actually reduce the ability of the Swiffer to remove dust because the spray+dust will saturate the fibers of the Swiffer quickly. The Swiffer is really designed to be used by itself (dry) to maximize the ability of the fibers to grab as much dust as possible.
Question:	Can I use my older swifter duster refills with swiffer
Answer:	Yes. I'm doing it.
Question:	Can swiffer 360 dusters be washed? By hand? In washing machine
Answer:	Yes you can hand wash them and then buy a can of original Endust in the red can. Spray it on the washed Swiffer dusters when ready to reuse. The red can Endust is made to spray on a cloth or dust mop to make it "static" and collect dust better. Only respray after next washing not at every use. Shake the dusters while they dry to help fluff them back out. Of course eventually you will need to toss them. It is up to you if you want to go to the bother or not but it is an option.
Question:	Does the 360 fit on the regular 180 holder
Answer:	The 360 Swiffer will fit onto the 180 Swiffer and has the added advantage of providing a much larger surface area for dusting.

Product features

Swiffer 360° Dusters Cleaner Refills

Swiffer 360° Dusters Trap + Lock up to 3x more* dust and allergens.** These Dusters refills have 360 degrees of specially coated fibers which are uniquely designed to Trap + Lock dust from every direction.

*Vs. feather duster.

**Common inanimate allergens from cat and dog dander and dust mite matter.

At a Glance

Specially coated fibers grab onto dust and don't let go.

Features and Benefits

Great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior.

Swiffer 180 Dusters Refills, Unscented, 12 Count

Swiffer

Based on 1 reviews Check latest price

Product description

Swiffer 180 Dusters TRAP + LOCK dust & allergens. Made with specially coated fibers that grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from even the tight spaces in your home. common inanimate allergens from cat and dog dander & dust mite matter

Cotton
Swiffer 180 Dusters TRAP + LOCK dust & allergens common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from even the tight spaces in your home.
Use with Swiffer Dusters short handle or Swiffer Dusters extendable handle
Great for dusting electronics,dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior
Traps and locks dust, pet hair and allergens; Common inanimate allergens from cat and dog dander and dust mite matter

User questions & answers

Question:	Can you use both sides of 180 swiffer dusters
Answer:	180 or 360 is the type or size of duster....18 count is th amount of duster in box...
Question:	Este trae el plástico
Answer:	This is a great question, and we're glad you asked. Our Swiffer 180 Dusters are tested and designed for use on wood surfaces, including wood floors. Please feel free to give us a call at (800) 214-8734 with any additional questions! - The Swiffer Team

Product features

Swiffer Dusters Cleaner Refills

Swiffer Dusters Trap + Lock dust and allergens*. They are uniquely designed to Trap + Lock dust from even the tight spaces in your home.

*Common inanimate allergens from cat and dog dander and dust mite matter.

At a Glance

Specially coated fibers grab onto dust and don't let go.

Features and Benefits

Great for dusting electronics, dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior.

Swiffer 180 Dusters, Multi Surface Refills with Gain Scent, 18 Count

Procter & Gamble - Pampers

Based on 3 reviews Check latest price

Product description

Swiffer 180 -Degree Multi-Surface Dusters TRAP + LOCK dust & allergens. Made with specially coated fibers that grab onto dust & don't let go. They are uniquely designed to Trap + Lock dust from even the tight spaces in your home. common inanimate allergens from cat and dog dander & dust mite matter.

MAIN INGREDIENTS : Polyester / Polyethylene /Polypropylene, Mineral Oil Finish, Fragrances. SUB INGREDIENTS: 2,6-Dimethyl-7-Octen-2-Ol, 2,6-Nonadienenitrile, 3,7-Dimethyl, 2-Buten-1-Ol, 3-Methyl-, 1-Acetate, 3a,4,5,6,7,7a-Hexahydro-4,7-Methano-1h-Indenyl Acetate, Benzyl Acetate, Citrus Aurantium Dulcis (Orange) Peel Oil, Decanal, Ethyl Trimethylcyclopentene Butenol, Eucalyptol, Gamma-Undecalactone, Limonene, Linalool, Octanal, Tetramethyl Acetyloctahydronaphthalenes, Undecanal, 2-Methyl. The handle for the duster is not included with this refill pack.

Swiffer Dusters TRAP + LOCK dust & allergens* *common inanimate allergens from cat and dog dander & dust mite matter
Specially coated fibers grab onto dust & don't let go
Uniquely designed to Trap + Lock dust from even the tight spaces in your home.
Use with Swiffer Dusters short handle or Swiffer Dusters extendable handle
Great for dusting electronics,dusting furniture, knick-knacks in your home or office, blinds, ceiling fans, and even your car interior

User questions & answers

Question:	Can you put them in the washing matchine
Answer:	I would not recommend putting these in the washer. My suspicion is that they will disintegrate.
Question:	what does the pack include
Answer:	This particular box is just the Swiffer duster pads only.
Question:	Do they make scent free swifter dusters
Answer:	Yes, they do.
Question:	How many times can you use before you need to change to a new duster head
Answer:	Depends on how much I dust and how long it's been since I last dusted. If I do the whole house I usually toss it after one use. If I just dust around one room I keep it on till the next time. You can tell by looking a it if it needs to be changed.