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Best Refrigerator Air Filters in 2026: Frigidaire, Whirlpool, LG and Kenmore Replacements Ranked by Owners

Seven refrigerator air filters ranked by fit, pack size and owner reviews: Frigidaire PAULTRA and PAULTRA2, Whirlpool W10311524, LG LT120F, Frigidaire RAF-2, Kenmore Elite 469918 and UAF-1.

Our top pickFrigidaire PAULTRA Refrigerator Air Filt…9.4Our score

Many refrigerators built in the last fifteen years have a second filter that owners forget about. Behind a small cover on the back wall or ceiling of the fresh-food compartment sits a pad of activated carbon that the fridge fan draws air through, absorbing the smell of onions, fish and last week’s leftovers before it settles into the butter. It is a consumable. After about six months the carbon is saturated, the change-filter light comes on, and the fridge starts to smell like a fridge again. Replacements are simple, but they are not interchangeable: each brand, and often each generation within a brand, uses its own shape. We ranked the refrigerator air filters in our appliances catalog by which fridges they fit, how many come in the pack and what hundreds to many thousands of owners report.

We have not run every one of these in a test fridge ourselves; the verdicts rest on the spec sheets and the owner review history. Prices are not printed because they change daily; every button opens the live Amazon page. These are odor filters for the air inside the fridge. The cartridge that cleans the water for the dispenser and ice maker is a different part, covered in our refrigerator water filters guide. If you are shopping for the appliance itself, see mini fridges.

How we picked

  • Genuine parts from the fridge maker wherever one is in the catalog, since fit and carbon load are the whole product.
  • Clear compatibility, with part numbers and the brands or filtration systems each one fits.
  • Activated carbon media and a six-month service life, as stated by every maker here.
  • Pack size called out, because single filters, twin packs and multipacks sit side by side on similar listings.
  • Owner feedback from several hundred to many thousands of reviews, with fit and authenticity comments noted.

The picks

#1
Best refrigerator air filter for most Frigidaire fridges

Frigidaire PAULTRA Refrigerator Air Filter Replacement, 1 Count

9.4Our score
Frigidaire PAULTRA Refrigerator Air Filter Replacement, 1 Count
Part numberPAULTRA (PureAir Ultra)FitsFrigidaire refrigerators with the PureAir Ultra system; see the fits-models listPack1 filterMediaActivated carbonLifeReplace every 6 monthsInstallNo tools: tear the serrated edge, pull out the window, mark the month, place in the fridge

The PAULTRA is the air filter for the large population of Frigidaire refrigerators that use the original PureAir Ultra housing, and many thousands of owners give this genuine part an excellent owner rating. It is a carbon filter in a small plastic frame. Installation needs no tools: tear along the serrated edge, pull out the window, mark the month you fitted it on the built-in indicator, and seat it in the housing. Frigidaire says it outperforms an open box of baking soda and keeps working for six months, after which the carbon is spent. The one thing to get right is the version. The PAULTRA, the PAULTRA2 and the RAF-2 look similar in photos and do not interchange, so check the fridge manual or the label on the old filter before ordering. This listing is a single filter. For a matching Frigidaire, it is simply the correct part.

Pros
  • Genuine Frigidaire part
  • Many thousands of owner reviews with an excellent owner rating
  • Month marker built into the filter
  • Tool-free swap in under a minute
Cons
  • Fits PureAir Ultra housings only, not Ultra II or RAF-2
  • Single filter per pack
  • Needs replacing twice a year
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
Whirlpool W10311524 FreshFlow Refrigerator Air Filter, OEM Carbon Filter for Odor Reduction - Replaces AIR1, W10315189, 1876318, PS2580853 - Fits Whirlpool, Maytag, KitchenAid, JennAir (Pack of 2)
Part numberW10311524, replaces AIR1Replaces1876318, 2319308, W10315189, W10335147, PS2580853 and othersFitsCompatible Whirlpool, Maytag, KitchenAid and JennAir refrigeratorsPackListed as a pack of 2MediaCarbon-based filter materialTypeGenuine OEM FreshFlow filter

Whirlpool builds refrigerators under several names, and one air filter serves most of them. The W10311524 FreshFlow filter, which replaces the part known as AIR1, fits compatible Whirlpool, Maytag, KitchenAid and JennAir models and supersedes a long list of older numbers, including W10315189, W10335147, 1876318 and 2319308. It is a genuine OEM carbon filter that Whirlpool says reduces common food odors far more effectively than baking soda. Many thousands of owners give it an outstanding owner rating, the highest tier on this page. This listing is titled as a pack of two, which is a year of filters, though the bullet points describe a single pack, so confirm the count shown at checkout. As always, check your model number: not every fridge from these brands has a FreshFlow housing. If yours does, this is the part the manual asks for.

Pros
  • One genuine part covers four sister brands
  • Many thousands of owner reviews with an outstanding owner rating
  • Long list of superseded part numbers makes matching easy
  • Twin pack covers a full year
Cons
  • Not for fridges without a FreshFlow air filter housing
  • Pack contents are described per pack, so confirm the count on the listing
  • Model number check still required
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
FRIGIDAIRE PAULTRA2 Pure Air Ultra II Refrigerator Air Filter with Carbon Technology to Absorb Food Odors, 3.8 Inch x 1.8 Inch, White (Pack of 6)
Part numberPAULTRA2 (Pure Air Ultra II)FitsFrigidaire refrigerators with Pure Air Ultra II filtrationSize3.8 x 1.8 inchesPackListed as a pack of 6MediaActivated carbonLifeReplace within 6 months, then reset the filter reminder

Frigidaire refrigerators with the Pure Air Ultra II system use a different housing from the original, and the PAULTRA2 is the filter for it: a white carbon cartridge about 3.8 by 1.8 inches. It is the most-reviewed air filter in our catalog, with many thousands of owners giving it an excellent owner rating. Fitting takes seconds. Remove the plastic wrap, push the filter into the housing, and reset the filter reminder on the control panel; replace it within six months for full odor removal. This particular listing is titled as a pack of six, which suits a household with two fridges or anyone who would rather not reorder twice a year, although the description notes its details are per pack, so check the quantity shown before buying. It will not fit a fridge that takes the original PAULTRA. For an Ultra II fridge, it is the genuine part in bulk.

Pros
  • Most-reviewed air filter in our catalog, with an excellent owner rating
  • Genuine Frigidaire part for the Ultra II system
  • Multipack means years of changes in one order
  • No tools needed
Cons
  • Does not fit the original PAULTRA housing
  • A six-pack is a lot to store if you own one fridge
  • Bullet points describe one filter, so confirm the count on the listing
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
LG 6 Month (LT120F) Replacement Refrigerator Air Filter, 1 Count (Pack of 1), White
Part numberLT120F, LG part ADQ73214404FitsCompatible LG refrigerators such as the LFX31925 and LFX25991 seriesPack1 filterPurposeHelps remove odors from the refrigeratorLife6 months, or when the CHANGE FILTER light comes onColorWhite

The LT120F, LG part ADQ73214404, is the six-month replacement air filter for compatible LG refrigerators. It is a white filter that helps remove odors from the fresh-food compartment so food keeps tasting the way it should; the description lists series such as the LFX31925 and LFX25991 among many others. LG recommends changing it roughly every six months or whenever the CHANGE FILTER light comes on at the control panel, so there is no need to keep a calendar. Thousands of owners give it an outstanding owner rating. This listing is one filter; LG also sells the same part in a three-pack if you would rather stock up. As with every filter here, the only real risk is ordering for a model that does not have the housing, so match the part number in your manual. For an LG fridge, it is the right one.

Pros
  • Genuine LG part
  • Thousands of owner reviews with an outstanding owner rating
  • Fridge tells you when to change it
  • One part number to remember: LT120F
Cons
  • Single filter per pack
  • Only for LG models built with an air filter housing
  • Compatibility list must be checked against your model
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
#59.6Our score
Frigidaire PureAir Replacement Refrigerator Air Filter RAF-2 - Set of 2
Part numberRAF-2 (PureAir)FitsFrigidaire refrigerators that use the RAF-2 filter housingPackSet of 2MediaCarbonLifeReplace every 6 months or as neededInstallRemove housing cover, snap in with carbon facing out, replace cover, reset reminder

The RAF-2 is a third Frigidaire air filter shape, for models built with that housing, and this genuine set of two covers a full year of changes. Like the others it is a carbon filter that Frigidaire says clears the air and absorbs smells more effectively than baking soda for up to six months. Fitting is tool-free but has one step to get right: remove the housing cover, discard the old filter, snap the new one in with the carbon side facing out, replace the cover and reset the reminder on the fridge. Thousands of owners give it an outstanding owner rating. It does not interchange with the PAULTRA or PAULTRA2, which makes three Frigidaire air filter shapes in circulation, so read the label on the filter you are removing. If it says RAF-2, this twin pack is the tidy way to buy it.

Pros
  • Two filters cover a full year
  • Genuine Frigidaire part
  • Thousands of owner reviews with an outstanding owner rating
  • Clear, tool-free install steps
Cons
  • A third Frigidaire shape that does not swap with PAULTRA or PAULTRA2
  • Carbon side must face outward when fitted
  • Shorter history than the PAULTRA line
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
#69.6Our score
4 Pack Kenmore Elite 469918 Refrigerator Air Filter (4)
Part numberKenmore Elite 469918FitsSelect Kenmore Elite and LG brand refrigeratorsPack4 filtersMediaCarbon-based charcoal filterLifeReplace every 6 monthsPackagingOriginal retail packaging

The 469918 is the Kenmore Elite air filter, and the listing says it suits select Kenmore Elite and LG brand refrigerators, so the two brands share this part. It is a long-lasting carbon-based charcoal filter, which the maker rates as many times more effective than baking soda at reducing odors, with the usual six-month replacement interval. This listing is a four-pack in original retail packaging, so one order covers two years. Over a thousand owners give it an outstanding owner rating. The listing itself is brief and does not walk through compatible model numbers, so the work is on your side: check that your manual or the old filter says 469918 before ordering. Four filters is also more than you need if you are about to replace the fridge. For a Kenmore Elite that will be in the kitchen for years, it is the economical way to stay stocked.

Pros
  • Four filters is two years of changes
  • Over a thousand owner reviews with an outstanding owner rating
  • Kenmore Elite branded part in retail packaging
  • Also listed for select LG brand refrigerators
Cons
  • Thin listing with little model-by-model guidance
  • Four filters is more than a casual buyer needs
  • Only for select Kenmore Elite and LG fridges
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.
#79.0Our score
Frigidaire UAF-1 PureFresh Universal Refrigerator Air filter
Part numberUAF-1, also listed as FRPFUAF1FitsAny brand or model of refrigerator or freezerPack1 filterMediaCarbonLifeReplace every 6 monthsInstallPunch out the installation month, peel the adhesive cover, stick inside the fridge

Plenty of refrigerators, including older units, garage fridges and many compact models, have no air filter housing at all. The Frigidaire UAF-1 PureFresh is for them. It is a self-contained carbon filter with an adhesive back: punch out the month you install it, peel the cover off the adhesive and stick it to a wall inside the fresh-food compartment or freezer. Frigidaire says it suits all brands and models and absorbs odors far more effectively than baking soda for six months. Hundreds of owners give it a very strong owner rating. Be realistic about how it works. With no fan drawing air through the carbon it acts passively, like a much better box of baking soda, and it is not a substitute for the built-in filter on a fridge that has one. For a fridge with no filter slot, it is the simple upgrade.

Pros
  • Works in any fridge, including models with no filter housing
  • Adhesive mount needs no slot or tools
  • Month punch-out reminds you when it was fitted
  • Hundreds of owner reviews with a very strong owner rating
Cons
  • No fan pulls air through it, so it works passively
  • Does not replace a built-in filter where the fridge has one
  • Adhesive is single use
Buy on Amazon Full specs & reviews Prices and availability change often. Check the store for the current price.

Compare the picks

ProductFitsPackMediaChange intervalOur scoreOur score
Frigidaire PAULTRAFrigidaireFrigidaire PureAir Ultra1 filterActivated carbon6 months9.4/109.4See price
Whirlpool W10311524WhirlpoolWhirlpool, Maytag, KitchenAid, JennAirListed as 2Carbon6 months9.6/109.6See price
Frigidaire PAULTRA2‎ElectroluxFrigidaire Pure Air Ultra IIListed as 6Activated carbonWithin 6 months9.4/109.4See price
LG LT120FLgCompatible LG models1 filterOdor filter6 months or filter light9.6/109.6See price
Frigidaire RAF-2FrigidaireFrigidaire RAF-2 housingSet of 2Carbon6 months9.6/109.6See price
Kenmore Elite 469918KenmoreSelect Kenmore Elite and LG4 filtersCarbon charcoal6 months9.6/109.6See price
Frigidaire UAF-1 universal‎ElectroluxAny refrigerator or freezer1 filterCarbon6 months9/109.0See price

Air filter or water filter?

They are different parts doing different jobs, and many fridges have both. The water filter is a sealed cartridge in the water line, usually in the top corner of the fridge or the base grille, and it treats the water going to the dispenser and ice maker. The air filter is a small carbon pad behind a vented cover inside the fresh-food compartment, and it only deals with odors in the air. They have separate part numbers and separate reminder lights on most models. Combination kits exist that bundle one of each; they are convenient if both are due, but check both part numbers, not just one.

Finding the right part number

Do not shop by photo. The quickest route is to open the filter cover and read the number printed on the old filter: PAULTRA, PAULTRA2, RAF-2, AIR1 or W10311524, LT120F, 469918. If the old filter is missing or unmarked, find the model number of the refrigerator on the label inside the fresh-food compartment wall and look up the air filter in the manual or on the maker’s parts site. Frigidaire alone has three current shapes that do not interchange. If your fridge has no air filter cover anywhere, it was not built with one, and the universal UAF-1 is the option.

When to change it and what to expect

Six months is the standard interval, and most fridges count the days and light a reminder; after fitting a new filter, reset it using the button combination in the manual. Change sooner if the fridge smells despite being clean. A filter absorbs odor from the air and cannot fix the source, so deal with spills, old produce and uncovered leftovers first, and wipe the door seals. Genuine filters cost more than look-alikes but carry the correct amount of carbon and seat properly in the housing, which is why every pick here is the fridge maker’s own part. Spent filters go in household trash.

How often should I change a refrigerator air filter?

About every six months, or when the change-filter light comes on. All seven filters here state a six-month life. Change sooner if odors return in a clean fridge, and reset the reminder on the control panel after fitting a new one.

Is a refrigerator air filter the same as a water filter?

No. The air filter is a carbon pad inside the fresh-food compartment that absorbs odors. The water filter is a sealed cartridge that treats water for the dispenser and ice maker. They have different part numbers and are replaced separately.

Which air filter fits my Frigidaire refrigerator?

Frigidaire uses three shapes: PAULTRA for the original PureAir Ultra housing, PAULTRA2 for Pure Air Ultra II, and RAF-2 on models with that housing. They do not interchange. Read the number on the filter you are removing or check the manual.

Do all refrigerators have an air filter?

No. Many older, basic and compact refrigerators have none. If there is no vented filter cover inside the fresh-food compartment, a stick-on filter such as the Frigidaire UAF-1 universal can be used in any fridge or freezer.

Is the Whirlpool AIR1 the same as W10311524?

They are interchangeable. W10311524 is the genuine Whirlpool FreshFlow air filter and the listing states that it replaces AIR1, W10315189, W10335147, 1876318 and 2319308. It fits compatible Whirlpool, Maytag, KitchenAid and JennAir refrigerators.

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RK

Software developer and hardware tinkerer. I have built, broken and fixed more PCs than I can count, and I write about the gear that actually earned a spot on my desk. How we score products · How we test.

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