Puroma Cabin Air Filter Reviews (2026): 6 Picks

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How we researched this guide

We compared 6 Puroma cabin air filters across 6 fitment families, checked 15 listing and guide pages including all 6 Puroma listing records, and reviewed 8 owner and review reports on install ease, fitment accuracy, and odour control. Every fitment claim below comes from a listing record or guide, with part numbers printed exactly as listed.

No filter here was lab-tested by us, and no performance figure is our own measurement. Maker claims are written as maker-stated, owner points are paraphrased and linked in Sources, and anything a listing did not publish is marked “Not published”.

The 30-second answer

Start with the number printed on your old filter, not your car model alone. Older Toyota, Lexus, and Subaru models take the CP285 2-pack, newer Toyota and Lexus models take the CP157 2-pack, older Honda and Acura models take the CP134, newer Honda and Acura models take the CP182 2-pack, Hyundai, Kia, and Genesis models take the CF12820, and Mazda 3, 6, and CX-5 models take the CF11811. If your old filter shows none of these numbers, do not guess: match the OEM number first.

Top pick

Puroma CP285 2-Pack Cabin Air Filter

Best for older Toyota, Lexus, and Subaru owners who want a spare on the shelf. Multiple-fibre layers, pleated build, sized for the long-running CP285 family.

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Best for newer Toyota and Lexus

Puroma CP157 2-Pack Cabin Air Filter

Best if your Toyota or Lexus is a 2018-or-newer model. Activated carbon plus a soda-woven layer for odour control, in a two-pack.

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Best for older Honda and Acura

Puroma CP134 Cabin Air Filter

Best for the wide older Honda and Acura family, from Civic and CR-V to MDX and RDX. Activated carbon layer, sold singly.

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Best for Hyundai and Kia

Puroma CF12820 Cabin Air Filter

Best for Hyundai, Kia, and Genesis cabins that call for CF12820. Activated carbon with a soda-woven layer, plus published dimensions and OEM numbers.

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Best for newer Honda and Acura

Puroma CP182 2-Pack Cabin Air Filter

Best if your Honda or Acura is a newer model that takes CP182 rather than CP134. Activated charcoal layer, in a two-pack.

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Best for Mazda

Puroma CF11811 Cabin Air Filter

Best for Mazda 3, Mazda 6, and CX-5 owners. Activated carbon construction with a clear cross-reference list and Mazda OEM numbers.

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Filter	Fits	Media	Pack	Check Price
CP285 2-pack	Older Toyota, Lexus, Subaru	Multiple-fibre	2 filters	Check Price
CP157 2-pack	Newer Toyota, Lexus	Carbon plus soda	2 filters	Check Price
CP134 single	Older Honda, Acura	Activated carbon	1 filter	Check Price
CF12820 single	Hyundai, Kia, Genesis	Carbon plus soda	1 filter	Check Price
CP182 2-pack	Newer Honda, Acura	Activated charcoal	2 filters	Check Price
CF11811 single	Mazda 3, 6, CX-5	Activated carbon	1 filter	Check Price

Puroma filter finder: match your old filter number

Type the cross-reference number printed on your old filter, such as CF10285 or CF12157, then press Enter or Find my filter. Every result includes that pick’s button, and an unrecognised number routes to the top pick with a check-first warning.

Enter a filter number above to see your Puroma match.

How to choose a Puroma cabin air filter

Match the OEM number, not just the model year

Listing year spans are wide and sometimes overlap between generations, so the number on your old filter is the reliable match. Read the part number off the frame. If the numbers do not match exactly, do not buy on year alone.

Carbon or multiple-fibre media

Activated carbon and charcoal layers trap dust, pollen, and soot while also cutting odours, which suits city driving, allergy season, and smell-prone cars. Multiple-fibre layers without a carbon claim still trap particulates and keep airflow strong, and suit drivers with dust as the main complaint.

Pack size: single or two-pack

A two-pack covers this change and the next one, for long-term owners. A single filter suits a first-time buyer still confirming fitment, or a car that may be sold before the next change. Never buy a two-pack to save money while fitment is unconfirmed.

Airflow and odour expectations

A fresh filter restores vent airflow and gives the carbon layer a clean start on odours, but no filter fixes a weak blower or a musty evaporator. If airflow stays weak after a correct new filter, the problem is elsewhere in the HVAC system. If odours return well before the change date, the carbon layer may be saturated early.

Check dimensions before ordering

Two filters for the same car family can differ by a fraction of an inch yet look identical in a photo. Where the listing publishes dimensions, compare them with your old filter before ordering. Where dimensions are not published, as with CF11811, rely on the OEM cross-reference instead.

Interval and driving conditions

Puroma rates its filters for replacement every 12 months or 12,000 miles, whichever comes first, or as the vehicle maker specifies. Dusty roads, heavy city traffic, and high-pollen seasons load the media faster, and Puroma’s CP285 record shortens the interval to every 5,000 miles in those conditions. Set the change by whichever limit comes first.

Puroma fitment at a glance

Pick	Headline fitment	OEM cross-reference to check
CP285 2-pack	Older Toyota, Lexus, Subaru, Scion	CF10285
CP157 2-pack	Newer Toyota, Lexus, Subaru, Mazda CX-9	CF12157, CF12436
CP134 single	Older Honda, Acura	CF10134, Honda 80292 series
CF12820 single	Hyundai, Kia, Genesis GV60	97133-L1000, 97133-N9100
CP182 2-pack	Newer Honda, Acura	CF11182, Honda 80291 series
CF11811 single	Mazda 3, Mazda 6, CX-5	CF11811, CPJ6X, CU24009

Fitment here is honest but bounded: every row is a listing claim, and the rule throughout is to verify the OEM number on your old filter before ordering. Year spans in listing titles do not prove every model year in the span fits. For broader reading, see our Car Heating, Cooling and Comfort archive.

Puroma cabin air filters by budget

Tier	What you get	Example pick
Single-filter value	One filter, full media, lowest commitment while confirming fitment	Puroma CP134
Two-pack saver	Two filters covering two change cycles, best for confirmed fitment	Puroma CP285 2-pack
Newer-model carbon	Carbon plus soda-woven layer for newer cars with odour complaints	Puroma CP157 2-pack

No prices appear here by design, so tiers describe what the pack and media give you rather than a price band. If unsure of fitment, start in the single-filter tier even if a two-pack looks like better value, because a wrong two-pack is two wrong filters. For damp-cabin complaints a filter alone will not fix, see our car dehumidifier guide.

Types of Puroma cabin air filters

Type	Pros	Watch-outs	Best for
Multiple-fibre	Strong particulate capture, pleated airflow	No carbon odour claim	Dust-first drivers
Activated carbon	Dust plus odour control	Carbon saturates before media wears out	City and allergy-season drivers
Carbon plus soda-woven	Strongest odour layer in this guide	Odour benefit fades before change date in heavy use	Smell-sensitive cabins

Puroma does not claim HEPA performance for any pick here, so this guide does not either. If a listing or roundup elsewhere calls a Puroma filter HEPA, treat that as the roundup’s language, not the maker’s. For related work, our AC service tools guide covers the tools side of HVAC maintenance.

Detailed reviews: Puroma cabin air filters

Each review below follows the same order: why it is the pick, its published specs, who it fits, owner reports, who should not buy it, and what to pair it with. Specs marked “Not published” were not found in the listing record, and no value was borrowed from another pick.

Top pick: Puroma CP285 2-Pack Cabin Air Filter

Top pick

Why the Puroma CP285 2-pack is our pick

The CP285 family covers the largest single group of cars here, from older Camry and RAV4 models to Highlander, Corolla, 4Runner, Tundra, Prius, and Sienna, plus Lexus, Subaru, and Scion models that share the same filter size. The two-pack means the next change is already on the shelf, for a yearly job owners often postpone. Its pleated media traps dust while keeping airflow strong.

Puroma CP285 2-pack key specs

Puroma part number: TCF285W
Replaces: CP285, CF10285
Pack: 2 filters
Dimensions: 8.43 x 7.6 x 1.14 inches
Material: fibreglass and paper
Construction: pleated
Media: multiple-fibre layers
Interval: every 12 months or 12,000 miles
Dusty-use interval: every 5,000 miles
Seller: PuromaDirect
UPC: 840064901918
Amazon ASIN: B087TRPKYJ

Puroma CP285 2-pack: fits and best for

This is the pick for older Toyota, Lexus, and Subaru cabins that call for CF10285: Camry, RAV4, Highlander, Corolla, 4Runner, Tundra, Prius, and Sienna, plus Lexus, Scion, Subaru Outback and Legacy, and Land Rover and Jaguar models that share the size. It suits owners who know their car takes CP285. It is not a substitute for CP157. If your old filter reads CF12157, buy the CP157 pick below.

Puroma CP285 2-pack pros and watch-outs

Widest fitment family in this guide
Two-pack covers two change cycles
Published dimensions to check before ordering
Pleated media rated for strong airflow
Clear dusty-use interval guidance

No activated-carbon odour layer claimed
Not interchangeable with newer CP157
Year spans in listings are wide and need OEM checking
Second filter needs dry storage until use

Puroma CP285 2-pack: what owners report

Owner reports describe a straightforward glove-box swap fitting the Camry correctly, needing no tools. The consistent caution is fitment first: confirm CF10285, because CP285 and CP157 are not interchangeable.

Sources: Puroma CP285 listing, ElectronicsHub guide.

Puroma CP285 2-pack: who should not buy

Do not buy this filter if odour control is your main complaint, since Puroma claims no activated-carbon layer for this multiple-fibre version. Do not buy it for a 2018-or-newer Toyota or Lexus without checking the old filter number first, since those cars often take CP157 instead. The better alternative is the CP157 2-pack below, which adds carbon and soda-woven odour control.

Puroma CP285 2-pack: pair it with

Pair it with the single-filter version of the same family to confirm fitment first, then keep the two-pack for the next change.

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Tip: photograph the part number on your old filter before throwing it away, so the next change starts with a verified number. Our maintenance checklist records yearly cabin jobs.

Best for newer Toyota and Lexus: Puroma CP157 2-Pack Cabin Air Filter

Best for newer Toyota and Lexus

Why the Puroma CP157 2-pack is our pick

Newer Toyota and Lexus cabins need a different filter from the older CP285 family; this is Puroma’s carbon answer. The activated charcoal layer removes dust, pollen, and soot, while the soda-woven layer targets stale odours. The two-pack suits owners of newer cars keeping them through several change cycles.

Puroma CP157 2-pack key specs

Puroma part number: CAF157
Replaces: CP157, CF12157, CF12436
Pack: 2 filters
Media: activated charcoal plus soda-woven layer
Construction: close-meshed, non-woven layer
Interval: every 12 months or 12,000 miles
Dimensions: Not published
Weight: Not published
Seller: PuromaDirect
Fitment note: verify OEM number on old filter
Single-pack twin: CAF157S
Amazon ASIN: B0BGHWBNLS

Puroma CP157 2-pack: fits and best for

This is the pick for newer Toyota models including Camry from 2018, Corolla from 2019, RAV4 from 2019, Highlander from 2020, and Sienna from 2021, plus Prius, Venza, Avalon, and Lexus RX, NX, and ES in the listed ranges. It also covers Subaru Ascent, Crosstrek, Impreza, Legacy, and Outback, and Mazda CX-9 from 2016 to 2023. It suits drivers with odour and allergy-season dust complaints. One trap: some C-HR listings cover Japan-built models only, so C-HR owners should verify by OEM number.

Puroma CP157 2-pack pros and watch-outs

Carbon plus soda-woven odour control
Two-pack covers two change cycles
Very detailed model-year list
Covers Toyota, Lexus, Subaru, and Mazda CX-9
Close-meshed layer rated for HVAC protection

Dimensions not published in the record
Not interchangeable with older CP285
C-HR fitment has a Japan-built trap
Single-pack part number varies between records

Puroma CP157 2-pack: what owners report

Owner reports describe a glove-box swap completed in a few minutes with no tools, fitment spot-on for a RAV4 Hybrid. The consistent caution is to confirm the OEM number: newer and older Toyota families share model names, not filter sizes.

Sources: Puroma CP157 listing, ShopAbunda CP157 page, KitchenSty guide.

Puroma CP157 2-pack: who should not buy

Do not buy this filter for an older Toyota or Lexus that takes CP285, because the two families are not interchangeable despite sharing model names. Do not buy it if your old filter shows CF10285. The better alternative is the CP285 2-pack above, which matches the older family.

Puroma CP157 2-pack: pair it with

Pair it with the single-filter version of the same family for a first change while fitment is unconfirmed, then use the two-pack once the OEM number is verified.

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Tip: if your car is a C-HR, check the build origin and OEM number before ordering, not just the model year. Our RAV4 accessories guide gives useful Toyota cabin background.

Best for older Honda and Acura: Puroma CP134 Cabin Air Filter

Best for older Honda and Acura

Why the Puroma CP134 is our pick

The older Honda and Acura family is one of the widest here, from early-2000s Accord and Civic models through CR-V, Odyssey, Pilot, and Ridgeline, plus Acura ILX, MDX, RDX, RLX, TLX, TSX, and ZDX. A single-filter pack is the right format here, because many owners buying for an older car for the first time should confirm fitment before committing to a spare. The activated charcoal layer removes dust and solid matter, and the OEM cross-reference list is long and checkable.

Puroma CP134 key specs

Puroma part number: HCF134S
Replaces: CP134, CF10134
Pack: 1 filter
Media: activated charcoal layer
Interval: every 12 months or 12,000 miles
Dimensions: Not published
Weight: Not published
OEM numbers: 80292-SDA-A01 and 6 more in the record
Seller: PuromaDirect
Two-pack twin: HCF134W
Trim note: some DX, EX, and base models lack a cabin filter
Amazon ASIN: B07VCKCPYK

Puroma CP134: fits and best for

This is the pick for older Honda and Acura cabins that call for CF10134: Accord from 2003 to 2022, Civic from 2006 to 2015, CR-V from 2007 to 2016, Odyssey from 2005 to 2017, Pilot from 2009 to 2022, and Ridgeline and Passport in the listed ranges.

Puroma CP134 pros and watch-outs

Very wide older Honda and Acura coverage
Activated charcoal odour layer
Long, checkable OEM cross-reference list
Single pack suits first-time fitment checks
Clear 12-month change interval

Dimensions not published in the record
Not interchangeable with newer CP182
Some base trims have no cabin filter at all
Single pack means reordering for the next change

Puroma CP134: what owners report

Owner-focused guides describe this filter as a versatile fit across many Honda and Acura models, with the activated-carbon layer standing out for allergy-season comfort and odour control, and straightforward installation. A third-party durability question in one roundup is why the 12-month change date is treated as firm here.

Sources: Puroma CP134 listing, NerdAsylum carbon-filter article.

Puroma CP134: who should not buy

Do not buy this filter for a newer Honda or Acura that takes CP182, such as a 2017-or-newer CR-V or 2016-or-newer Civic, without checking the old filter number first. Do not buy it if your car has no cabin filter housing at all, which some base trims lack. The better alternative for newer cabins is the CP182 2-pack below.

Puroma CP134: pair it with

Pair it with the two-pack version of the same family once fitment is confirmed, so the next change is on the shelf.

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Tip: on older Hondas, open the glove box and look for the filter housing before ordering: some base trims never had one. Our car seat covers guide covers an older-cabin refresh.

Best for Hyundai and Kia: Puroma CF12820 Cabin Air Filter

Best for Hyundai and Kia

Why the Puroma CF12820 is our pick

Hyundai, Kia, and Genesis cabins that call for CF12820 get the most completely documented filter here. The listing publishes dimensions, weight, UPC, OEM numbers, and construction, so buyers can verify fitment three ways instead of trusting a year span. The activated charcoal layer captures odour-causing contaminants, while the soda-woven layer adds a second odour-fighting step.

Puroma CF12820 key specs

Puroma part number: CAF820S
Replaces: CF12820
Pack: 1 filter
Dimensions: 8.9 x 8.19 x 1.14 inches
Weight: 0.3 kilograms
Material: carbon fibre
Construction: pleated
Media: activated charcoal plus soda-woven layer
Interval: every 12 months or 12,000 miles
OEM numbers: 97133-L1000, 97133-N9100
UPC: 840064902335
Amazon ASIN: B0CSCZ1DZ2

Puroma CF12820: fits and best for

This is the pick for Hyundai Elantra, Ioniq, Santa Cruz, Santa Fe, Sonata, and Tucson, plus Kia K5, Niro, Sorento, and Sportage, and Genesis GV60. It suits Hyundai and Kia owners wanting a carbon filter with fully published dimensions. Verify OEM number 97133-L1000 or 97133-N9100 before ordering.

Puroma CF12820 pros and watch-outs

Fully published dimensions and weight
Carbon plus soda-woven odour layers
Clear OEM numbers to verify
Wide Hyundai, Kia, and Genesis coverage
Pleated construction rated for airflow

Single pack means reordering for the next change
Not a substitute for older CF11819 family filters
Year spans still need OEM checking
Carbon layer saturates before the media wears out

Puroma CF12820: what owners report

Owner reports for this pick centre on installation: a simple install demo is the most repeated owner theme, with the filter seating cleanly once the housing is open. No owner theme disputes the fitment list, but the OEM number remains the check.

Sources: Puroma CF12820 listing, KitchenSty guide.

Puroma CF12820: who should not buy

Do not buy this filter for an older Hyundai or Kia that takes the CF11819 family, because CF12820 is newer and the two are not interchangeable. Do not buy it on model name alone near a generation change. Instead, verify the old filter’s OEM number first, and if it reads as an older family, shop that family specifically. For background, our car dehumidifier guide separates damp-cabin problems from filter problems.

Puroma CF12820: pair it with

Pair it with a calendar note for the next change, since this is a single pack: the 12-month or 12,000-mile date is the trigger. No verified Puroma twin pack for this part number was found, so this guide does not invent one; buy a second single once the first is confirmed to fit.

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Tip: measure the old filter before ordering, since this listing publishes exact dimensions and even a small mismatch means a poor seal. Our portable air compressor guide covers cabin clean-up tools.

Best for newer Honda and Acura: Puroma CP182 2-Pack Cabin Air Filter

Best for newer Honda and Acura

Why the Puroma CP182 2-pack is our pick

Newer Honda and Acura cabins moved to a different filter size from the older CP134 family; this two-pack is Puroma’s carbon answer for that newer group. The activated charcoal layer removes dust, pollen, and soot, while keeping the cabin fresh. The two-pack suits owners of newer cars who will keep them for years, and the listing’s model list separates newer Civic, CR-V, HR-V, Odyssey, Accord, and Pilot models from their older counterparts.

Puroma CP182 2-pack key specs

Puroma part number: HCF182
Replaces: CP182, CF11182
Pack: 2 filters
Dimensions: 8.27 x 1.14 x 8.07 inches
Media: activated charcoal layer
Interval: every 12 months or 12,000 miles
Weight: Not published
OEM numbers: 80291-T5R-A01 and 5 more in the record
Construction: Not published
Seller: PuromaDirect
Fitment note: verify OEM number on old filter
Amazon ASIN: B0874Q4G4H

Puroma CP182 2-pack: fits and best for

This is the pick for newer Honda models including Civic from 2016, CR-V from 2017, HR-V from 2016, Odyssey from 2018, and Accord and Pilot from 2023, plus Acura RDX from 2019, TLX from 2021, Integra from 2023, and MDX from 2022. It suits newer Honda and Acura owners who want carbon filtration and a spare.

Puroma CP182 2-pack pros and watch-outs

Activated charcoal odour and dust layer
Two-pack covers two change cycles
Published dimensions to check
Detailed newer-model list
Long Honda OEM cross-reference list

Not interchangeable with older CP134
Weight and construction not published
Model-name overlap with CP134 family
Second filter needs dry storage until use

Puroma CP182 2-pack: what owners report

The listing record stresses the three replacement triggers owners notice: a musty odour from the vents, poor HVAC performance, and air that no longer circulates well. The CP134 trap recurs.

Sources: Puroma CP182 listing, NerdAsylum carbon-filter article.

Puroma CP182 2-pack: who should not buy

Do not buy this filter for an older Honda or Acura that takes CP134, even if the model name matches a newer car. A 2006 to 2015 Civic, for example, takes CP134, not CP182. The better alternative for the older family is the CP134 above, which matches the older OEM numbers.

Puroma CP182 2-pack: pair it with

Pair it with a cabin clean-up pass while the glove box is open: vacuum loose dust from the housing area before seating the new filter, so trapped debris does not load the fresh media on day one.

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Tip: keep the second filter sealed until the next change, since an opened filter gathers dust on the shelf. Our shop vac guide covers glove-box clean-up.

Best for Mazda: Puroma CF11811 Cabin Air Filter

Best for Mazda

Why the Puroma CF11811 is our pick

Mazda owners have a narrower choice here, and this single pick covers it cleanly: Mazda 3, Mazda 6, and CX-5 models that call for CF11811. The activated carbon construction protects against airborne contaminants while keeping cabin air fresh, and the cross-reference list is unusually broad, covering CPJ6X, CAF1907P, CAF1907C, and CU24009 alongside the Mazda OEM numbers. That breadth matters because Mazda filters often sell under several part numbers.

Puroma CF11811 key specs

Puroma part number: MCF811S
Replaces: CF11811, CPJ6X, CAF1907P, CAF1907C, CU24009
Pack: 1 filter
Media: activated carbon
Interval: every 12 months or 12,000 miles
Dimensions: Not published
Weight: Not published
Construction: Not published
OEM numbers: MP11-1K-D45, KD45-61-J6X, KR11-61-J6X
UPC: 84006490272
Seller: PuromaDirect
Amazon ASIN: B0D7Z2D3BJ

Puroma CF11811: fits and best for

This is the pick for Mazda 3, Mazda 6, and CX-5 models that call for CF11811 or any of its cross-references. It suits Mazda owners who have confirmed their car uses this size, since the listing record is thinner on dimensions than the Hyundai and Kia pick. Keep the packaging until the new filter seats.

Puroma CF11811 pros and watch-outs

Activated carbon media
Broad cross-reference list
Clear Mazda OEM numbers
Single pack suits first-time confirmation
Same 12-month change rhythm as the rest of the guide

Dimensions not published
Weight and construction not published
Single pack means reordering for the next change
Thinnest listing record in this guide

Puroma CF11811: what owners report

Owner coverage for this specific Mazda pick is thinner than for the Toyota and Honda families, and this guide says so rather than borrowing another pick’s owner themes. For Mazda confidence, the strongest evidence is the cross-reference list: five part numbers and three Mazda OEM numbers for the same filter size.

Sources: Puroma CF11811 listing, ElectronicsHub guide.

Puroma CF11811: who should not buy

Do not buy this filter for a Mazda that takes a different filter size, and do not buy it on the Mazda badge alone without checking the old filter’s number. Mazda ranges split across filter sizes, and a wrong single pack still costs a return trip. For an unconfirmed Mazda, pull the old filter first and read its number before matching it here; our 4Runner accessories guide shows the same verify-first method.

Puroma CF11811: pair it with

Pair it with a first-change inspection habit: when this filter goes in, check the housing for leaves and debris, since Mazda housings in dusty use load up quickly. See Safety essentials for accessories for this step.

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Tip: save the cross-reference list with your car records, since Mazda filters sell under several numbers and the next search may use a different one. Our cargo organisers guide covers tidy car records and spares.

Spec comparison

Spec	CP285 2-pack	CP157 2-pack	CP134 single
Media	Multiple-fibre	Carbon plus soda	Activated carbon
Pack	2 filters	2 filters	1 filter
Dimensions	8.43 x 7.6 x 1.14 in	Not published	Not published
Construction	Pleated	Non-woven layer	Not published
Interval	12 mo / 12,000 mi	12 mo / 12,000 mi	12 mo / 12,000 mi
Cross-reference	CF10285	CF12157	CF10134
Headline family	Older Toyota	Newer Toyota	Older Honda
Check Price	Check Price	Check Price	Check Price

Spec	CF12820 single	CP182 2-pack	CF11811 single
Media	Carbon plus soda	Activated charcoal	Activated carbon
Pack	1 filter	2 filters	1 filter
Dimensions	8.9 x 8.19 x 1.14 in	8.27 x 1.14 x 8.07 in	Not published
Construction	Pleated	Not published	Not published
Interval	12 mo / 12,000 mi	12 mo / 12,000 mi	12 mo / 12,000 mi
Cross-reference	CF12820	CF11182	CF11811
Headline family	Hyundai, Kia	Newer Honda	Mazda
Check Price	Check Price	Check Price	Check Price

No scores are given here: cabin filters are not ranked on a test scale, because no lab testing was done and no maker publishes a comparable efficiency score across these six families. Choose by fitment first, then by media type, then by pack size. For the wider category, browse our Car Heating, Cooling and Comfort archive.

Fitment and installation basics

Most cabin filters here sit behind the glove box, and the usual job is: empty the glove box, release its damper or stops, open the housing door, note the airflow arrow on the old filter, slide it out, clear loose debris from the housing, and slide the new filter in with its arrow pointing the same way. That covers the common case, but some models hide the filter elsewhere, so check your owner’s manual before forcing any trim panel. Never run the HVAC system with the filter removed beyond a quick check, since unfiltered air then reaches the blower and evaporator directly.

After fitting, run the fan through its speeds and check that airflow feels even and the glove box closes and latches normally. If a damper arm or stop was disconnected, reconnect it before closing up, since a loose glove box will drop open on the first bump. Keep the old filter’s part number and the new filter’s packaging until fit is confirmed. For general habits, see our maintenance checklist, heated seat cushion review and vent covers guide.

Safety essentials

Follow these six rules on every cabin filter change:

Switch the engine and HVAC system off before opening the filter housing.
Match the airflow arrow on the new filter to the old filter’s direction.
Never force a filter that does not seat; a poor seal lets unfiltered air bypass it.
Wash your hands after handling a dirty filter, and avoid shaking dust into the cabin.
If the old filter shows mould or heavy damp debris, ventilate the car and seek advice before refitting.
Do not run the HVAC system for long with no filter fitted, to protect the blower and evaporator.

For cabin-care reading, see our car dehumidifier guide, air compressor guide, and car seat covers guide. Safety accessories for this job:

Work gloves for dusty filters: Mechanix Wear Original work gloves Check Price

Eye protection against housing dust: DEWALT DPG82-11 Concealer clear anti-fog goggles Check Price

Panel tools for glove-box trim: Tresalto 5-piece nylon trim removal tool kit Check Price

Troubleshooting

Symptom	Likely cause	Fix
Weak vent airflow	Clogged filter media	Replace the filter and recheck fan speeds
Musty odour at start-up	Saturated carbon or damp debris	Replace the filter; ventilate before refitting
Odour returns quickly	Carbon saturated early in dusty use	Shorten the interval; check for housing debris
Blower noise rises	Restricted filter straining the blower	Replace the filter; do not run it clogged
New filter will not seat	Wrong family or reversed arrow	Recheck OEM number and arrow direction
Dust in cabin after change	Debris left in housing	Vacuum the housing before seating the new filter

Who should NOT buy these

Drivers whose car takes a different filter family. If your old filter reads CF10140, CF11819, or any number not in this guide, none of these six picks matches, and buying the closest-looking one is a mistake. Verify the OEM number and shop that exact family.

Drivers chasing a HEPA claim. No Puroma listing in this pass claims HEPA performance, so buyers who need a certified HEPA filter should shop one carrying that certification rather than assuming a carbon filter qualifies.

Drivers with a musty evaporator or a failing blower. A new filter restores airflow and gives odour control a clean start, but it does not repair a mouldy evaporator, weak blower motor, or leaking heater core. If symptoms persist after a correct new filter, the HVAC system itself needs attention; our AC recovery equipment guide and AC service tools guide cover the professional side.

Drivers who have not checked for a filter housing. Some base trims never had a cabin filter, and ordering blind wastes a return trip. Open the housing location first, confirm a filter is fitted, then order.

Final verdict

Top pick: Puroma CP285 2-pack Check Price

Best for newer Toyota and Lexus: Puroma CP157 2-pack Check Price

Best for older Honda and Acura: Puroma CP134 Check Price

Best for Hyundai and Kia: Puroma CF12820 Check Price

Best for newer Honda and Acura: Puroma CP182 2-pack Check Price

Best for Mazda: Puroma CF11811 Check Price

If you take one rule from this guide, take this: match the number on the old filter, and every pick above becomes a straightforward yearly job, not a guessing game.

FAQ

How do I know which Puroma filter fits my car?

Read the part number or OEM number printed on your old filter and match it against the cross-reference list for the pick. Model year alone is not enough, because one model can split across two filter families at a generation change. If the old filter is missing, check your owner’s manual or the filter housing label before ordering.

How often should I replace a Puroma cabin air filter?

Puroma rates its filters for replacement every 12 months or 12,000 miles, whichever comes first, or as your vehicle maker specifies. Dusty roads, construction zones, heavy city traffic, and high-pollen seasons load the media faster, and Puroma’s own CP285 record shortens the interval to every 5,000 miles in those conditions. Change on whichever limit you hit first.

What is the difference between the Puroma CP285 and CP157?

Both cover Toyota and Lexus cars, but they are different generations and are not interchangeable. CP285 fits the older family, including older Camry, RAV4, Highlander, Corolla, and related Lexus and Subaru models. CP157 fits the newer family, including Camry from 2018, Corolla from 2019, RAV4 from 2019, and related Lexus models. Check the old filter number to tell them apart.

What is the difference between the Puroma CP134 and CP182?

Both cover Honda and Acura cars, but they are different generations and are not interchangeable. CP134 fits the older family, including older Civic, CR-V, Odyssey, Pilot, and related Acura models. CP182 fits the newer family, including Civic from 2016, CR-V from 2017, HR-V from 2016, and related Acura models. The model name alone cannot separate them, so read the old filter number.

Are Puroma cabin air filters HEPA filters?

No Puroma listing record checked for this guide claims HEPA performance for these six picks, so this guide does not call any of them HEPA. They are particulate and activated-carbon filters rated to trap dust, pollen, soot, and odour-causing contaminants. If you need certified HEPA filtration, choose a filter that carries that certification explicitly rather than assuming a carbon filter qualifies.

Can I install a Puroma cabin filter myself?

For most cars in this guide, yes: the filter usually sits behind the glove box, and the job is emptying the glove box, releasing its stops, opening the housing door, and swapping the filter with its airflow arrow pointing the same way as the old one. Some models hide the filter elsewhere, so check your owner’s manual first and do not force trim panels. If the housing is hard to reach, a shop can do the same job quickly.

Why does my car still smell after a new filter?

A new filter gives odour control a clean start, but it cannot fix a musty evaporator, damp debris in the housing, or a leak elsewhere in the HVAC system. If odours persist after a correct new filter, clean the housing, ventilate the car, and consider professional HVAC attention. Carbon layers also saturate early in dusty or high-pollution use, so a returning smell before the change date can mean the interval needs shortening.

What if my car has no cabin filter?

Some base trims were never fitted with a cabin filter, and the CP134 listing notes this explicitly for some DX, EX, and base Honda models. If no housing or filter is present behind the glove box, do not order a filter on model name alone. Confirm with your owner’s manual or a dealer parts check whether your exact trim takes one, and which part number it uses.

Should I buy a single filter or a two-pack?

Buy a single filter when fitment is still unconfirmed, because a wrong two-pack is two wrong filters. Buy a two-pack once the OEM number is verified and you plan to keep the car through the next change, since it covers two yearly cycles. For the CP285, CP157, and CP182 families, the two-pack is the natural format; for CP134, CF12820, and CF11811, start single and reorder once fitment is proven.

Sources & changelog

Manufacturer and listing sources: Puroma CP285 2-pack listing, Puroma CP157 2-pack listing, Puroma CP134 listing, Puroma CF12820 listing, Puroma CP182 2-pack listing, Puroma CF11811 listing.

Owner and guide sources: EngineerFix interval guide, KitchenSty in-cabin guide, ElectronicsHub best-filter guide, ShopAbunda CP157 page, NerdAsylum carbon-filter article, Independent cabin-filter buying guide (PDF), Firestone cabin-filter guide, Jalopnik interval article, AutoZone installation instructions, Bosch filter types page.

Changelog — October 30, 2026: guide first published.

By Leo, Founder, WinchInsider

Leo covers vehicle maintenance and cabin-comfort gear, with a focus on verified fitment: part numbers first, and claims checked against maker records.