20 Best Pre Filter For Air Filter [2024]

Are you looking for the best pre filter for air filter? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling pre filter for air filter.

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# Preview Product
1 Honeywell HRF-A300 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,... Honeywell HRF-A300 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC,...
2 Universal Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters and Air... Universal Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters and Air...
3 Ulrempart AD3000 Filters Replacement Sets, Fit for Air DR. Purifier Model AD3000, AD3000M, Includes... Ulrempart AD3000 Filters Replacement Sets, Fit for Air DR. Purifier Model AD3000, AD3000M,...
4 Honeywell HRF-A100 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,... Honeywell HRF-A100 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC,...
5 Honeywell HEPA Air Purifier Filter Kit – Includes 3 HEPA R Replacement Filters and 4 A Carbon... Honeywell HEPA Air Purifier Filter Kit – Includes 3 HEPA R Replacement Filters and 4 A Carbon...
6 Breathe Naturally HPA300 Carbon Pre Filter Replacement (4 Pack) Precut for Honeywell HPA300 HEPA Air... Breathe Naturally HPA300 Carbon Pre Filter Replacement (4 Pack) Precut for Honeywell HPA300 HEPA...
7 Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters Trash Cans and Air... Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters Trash Cans and Air...
8 LEVOIT LV-H132 Air Purifier Replacement Filter, 3-in-1 Nylon Pre-Filter, True HEPA Filter,... LEVOIT LV-H132 Air Purifier Replacement Filter, 3-in-1 Nylon Pre-Filter, True HEPA Filter,...
9 Honeywell HRF-A200 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,... Honeywell HRF-A200 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC,...
10 Whirlpool 8171434K (8171434), 4-Pack (Large), Air Purifier Active Carbon Pre-Filters, Fits Air... Whirlpool 8171434K (8171434), 4-Pack (Large), Air Purifier Active Carbon Pre-Filters, Fits Air...
11 Durabasics 8 Pack Replacement Prefilter for Honeywell HPA200 | Carbon Pre Filter Replacements for... Durabasics 8 Pack Replacement Prefilter for Honeywell HPA200 | Carbon Pre Filter Replacements for...
12 Filter-Monster Branded Replacement for Austin Air Healthmate (HM400) Filter with Pre-Filter Filter-Monster Branded Replacement for Austin Air Healthmate (HM400) Filter with Pre-Filter
13 Honeywell Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+) Honeywell Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+)
14 HPA300 HEPA Filter Replacement Compatible with Honeywell Air Purifiers by Airity | Honeywell Air... HPA300 HEPA Filter Replacement Compatible with Honeywell Air Purifiers by Airity | Honeywell Air...
15 Fette Filter Pack of 2 Carbon Pre-Filter Rolls | Compatible with Honeywell HRF-AP1, Filter A –... Fette Filter Pack of 2 Carbon Pre-Filter Rolls | Compatible with Honeywell HRF-AP1, Filter A –...
16 Impresa 3 Pack Replacement Washable Pre-Filters for Blueair Blue Pure 211+ Lunar Rock Color Impresa 3 Pack Replacement Washable Pre-Filters for Blueair Blue Pure 211+ Lunar Rock Color
17 Mchillnet Replacement Filters for Bissell Air320 Air220 2609A Air Purifier, 2678 HEPA Filter +... Mchillnet Replacement Filters for Bissell Air320 Air220 2609A Air Purifier, 2678 HEPA Filter +...
18 Veva HEPA Filter B Replacement, Compatible with Germ Guardian FLT4825 HEPA, AC4900CA, AC4825,... Veva HEPA Filter B Replacement, Compatible with Germ Guardian FLT4825 HEPA, AC4900CA, AC4825,...
19 Compatible for Honeywell Odor Reducing Air Purifier Replacement Pre-Filter 2 Pack, HRF-B2 /Filter... Compatible for Honeywell Odor Reducing Air Purifier Replacement Pre-Filter 2 Pack, HRF-B2 /Filter...
20 Dekiru Carbon Activated Filter Precut for HPA300 Prefilter Compatible with Honeywell Air Purifier... Dekiru Carbon Activated Filter Precut for HPA300 Prefilter Compatible with Honeywell Air Purifier...
SaleBestseller No. 1
Honeywell HRF-A300 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,...
  • AIR PURIFIER PRE-FILTER REPLACEMENT – The Honeywell Air Purifier A Pre-Filter helps capture larger airborne particles such as dust, lint, fibers,...
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME – These A Pre-Filters are pre-cut to fit HPA300 series: HA/HPA300 series, HPA304 series, HPA3300 series,...
  • EFFECTIVE AIR CLEANING & CIRCULATION – The activated carbon in this Honeywell Air Purifier Pre-Filter helps reduce common household odors. Replace...
  • COMPATIBLE DOESN’T MEAN COMPARABLE – For best performance, use only genuine Honeywell air purifier filters. Compatible air purifier filter...
  • A BRAND YOU CAN TRUST – With over 25 years of air cleaning expertise, Honeywell air purifiers are designed with your clean air comfort in mind.
Bestseller No. 2
Universal Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters and Air...
  • Universal activated carbon pre filter can be cut to fit any size filter. A thin 1/16 inch thickness works great
  • Can be cut to size for air purifiers, range hood filters, humidifier filter, vents, grease filter and furnace filter. 16x48 charcoal sheet
  • Can be used with Honeywell, Whirlpool, HEPA, Next Gen and any other air purifier. Fits Honeywell hrf-ap1, Honeywell Round, QuietCare & SilentComfort...
  • Pre filter carbon helps reduce household odors and capture big particle such as hair, dust, etc. Protects the HEPA filter and extends its life span
  • It fits Honeywell model: HPA020 series, HPA030 series, HA090 series, HPA090 series, HA100 series, HPA100 series, HPA200 series, HPA250 series, HA300...
Bestseller No. 3
Ulrempart AD3000 Filters Replacement Sets, Fit for Air DR. Purifier Model AD3000, AD3000M, Includes...
  • This filter is compatible with Air Purifier Doctor models AD3000, AD3000M, AD3000pro Part#: ADF3001, ADF3002 filter replacement. Work just like the...
  • Cost-Effective Price: Great value combo pack included: 4x Extra Pre-filters, 2x Activated Carbon Filter with 2x Pre-filters and 1x H13 True HEPA...
  • True HEPA Technology : A higher grade H13 true HEPA material was used, captures up to 99.97 percent of particles. Improve your indoor air quality to...
  • Trap Household Odors: The activated carbon filter can efficiently absorbs unwanted odors.It is recommended to replace avtivated filters and HEPA...
  • 100% Quality Guarantee. If you have questions or problems with your Ulrempart filter at any time don’t hesitate to give us a call or E-mail,...
SaleBestseller No. 4
Honeywell HRF-A100 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,...
  • AIR PURIFIER PRE-FILTER REPLACEMENT – The Honeywell Air Purifier A Pre-Filter helps capture larger airborne particles such as dust, lint, fibers,...
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME – These A Pre-Filters are designed exclusively to fit Honeywell models HPA094, HPA100 series, HPA101...
  • EFFECTIVE AIR CLEANING & CIRCULATION – The activated carbon in this Honeywell Air Purifier Pre-Filter helps reduce common household odors. Replace...
  • COMPATIBLE DOESN’T MEAN COMPARABLE – For best performance, use only genuine Honeywell air purifier filters. Compatible air purifier filter...
  • A BRAND YOU CAN TRUST – With over 25 years of air cleaning expertise, Honeywell air purifiers are designed with your clean air comfort in mind.
Bestseller No. 5
Honeywell HEPA Air Purifier Filter Kit – Includes 3 HEPA R Replacement Filters and 4 A Carbon...
  • AIR PURIFIER FILTER REPLACEMENT KIT – This value combo pack of air purifier filters is a one-year supply for the HPA200 and...
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME – This Honeywell Filter Kit is designed exclusively to fit Honeywell HEPA Air Purifier models...
  • R HEPA FILTERS – These HEPA filters help capture up to 99.97% of the following microscopic airborne particles: pollen, pet dander, and smoke....
  • A PRE-FILTERS – This Honeywell A pre-filter captures larger airborne particles and activated carbon reduces unpleasant smells...
  • COMPATIBLE DOESN’T MEAN COMPARABLE – For best performance, use only genuine Honeywell air purifier filters. Compatible air purifier filter...
Bestseller No. 6
Breathe Naturally HPA300 Carbon Pre Filter Replacement (4 Pack) Precut for Honeywell HPA300 HEPA Air...
  • Direct Replacement – Measured exactly to fit Honeywell HRF-A300 / HPA300 series air purifiers. Filter Measures: 14” x 17.2” x 0.13”....
  • 4 Pack – Premium Quality Extra Thick Carbon Pre-filters – Breathe Naturally’s carbon pre-filters are not only thicker than leading original...
  • Made in the USA - Carbon pre-filters cut and packaged in Minnesota in our commercial facility and clean room - Family owned and operated.
  • 100% Satisfaction Guarantee – We guarantee you will love our carbon pre-filters or your money back. No questions asked. Breathe Easy knowing Breathe...
  • Resealable Plastic Bag - Keep your carbon filters fresh and clean until you are ready for a change! We recommend changing carbon filters every 1-2...
Bestseller No. 7
Cut to Fit Carbon Pad Pre Filter Roll for Air Purifiers Furnace Filters Trash Cans and Air...
  • Universal activated carbon pre filter can be cut to fit any size filter. A thin 1/16 inch thickness odor absorber.
  • Removes Dust Lint Smoke Pet hair Common household chemicals Benzene and other VOCs so all you’re left with is fresh, breathable air
  • Can be cut to size for air purifiers, range hood filters, humidifier filter, vents, vent filter, grease filter and furnace filter. 16x48 charcoal...
  • Can be used with Honeywell, Whirlpool, HEPA, Next Gen and any other air purifier. Fits Honeywell hrf-ap1, Honeywell Round, QuietCare & SilentComfort...
Bestseller No. 8
LEVOIT LV-H132 Air Purifier Replacement Filter, 3-in-1 Nylon Pre-Filter, True HEPA Filter,...
  • Use only genuine LEVOIT lv-h132 replacement filters to keep your air purifier at its best working condition and capacity
  • Fine preliminary, H13 true hepa filter and activated carbon filter. It removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander
  • Perfect for those who are sensitive to the surrounding air quality. It will not release hazardous substances or ozone
  • Filters are sealed to protect their lifetime. It is recommended to replace air filters every 6 months. Remove filters from plastic packaging before...
SaleBestseller No. 9
Honeywell HRF-A200 Air Purifier Pre Kit Filter, 4-Pack - Allergen Air Filter Targets Dust, VOC, Pet,...
  • HONEYWELL PRE- FILTER REPLACEMENT – This 4-pack (one-year supply) of certified Honeywell HRF-A200 “A” Pre-Filter air purifier filters helps...
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME - “A” air purifier filters work with Honeywell 200 series HEPA air purifiers, and are pre-cut to fit...
  • #1 BRAND RECOMMENDED BY ALLERGISTS** – Honeywell Air Purifiers, The Doctor’s Choice, the #1 brand recommended by allergists. Honeywell air...
  • COMPATIBLE DOES NOT MEAN COMPARABLE – For best performance, use only genuine Honeywell air purifier filters. Compatible air purifier filter...
  • EFFECTIVE AIR CLEANING AND CIRCULATION – A Honeywell Air Purifier filters and circulates air up to 4.8 times an hour – 120x per day for its stated...
Bestseller No. 10
Whirlpool 8171434K (8171434), 4-Pack (Large), Air Purifier Active Carbon Pre-Filters, Fits Air...
  • Carbon-based filter designed to remove common household odors including smoke cooking odors and pet odors and VOCs
  • For use with Whirlpool air purifier models AP51030K, AP45030K, APR45130L, APR45230L, AP51030KB
  • Filter captures larger particles from the air, including pet hair and dander, extending the life of the HEPA filter
  • Package contains 4 pre-filters, dimensions: 16 1/2" x 1/8" x 19 1/8"
  • Improves and maintain clean fresh air quality in the house. Removes and eliminates airborne particles or indoor air pollutants such as household dust,...
Bestseller No. 11
Durabasics 8 Pack Replacement Prefilter for Honeywell HPA200 | Carbon Pre Filter Replacements for...
  • HPA200 Pre Filter Value Pack - 8 premium activated carbon prefilters compatible with Honeywell air purifier Filter A, HRF-AP1, HRF-A200 & HRF AP1....
  • Combat Odors, Smoke & Smells - Our premium activated carbon pre-filters help keep your home, office, or room smelling fresh and clean. Perfect for...
  • Designed For Ease And Effectiveness - Each replacement Honeywell air purifier pre filter is pre-cut to specifically fit Honeywell air purifier model...
  • Maximize The Life Of Your Honeywell HPA 200 Filters - Compatible with Honeywell prefilter A Plus, our prefilters extend the life of your Honeywell...
  • Never Cut Filters Again - Each filter has been precision cut to 13 7/8" x 11 1/2" specifically for your Honeywell HPA200 purifier. Say goodbye to...
Bestseller No. 12
Filter-Monster Branded Replacement for Austin Air Healthmate (HM400) Filter with Pre-Filter
  • Filter-Monster branded replacement for Austin Air Healthmate FR400 Air Purifier filter. Fits Austin Air air purifier models HM400, HM402, HM405,...
  • True HEPA filtration removes up to 99.97% of airborne particles as small as 0.3 microns in size including dust, smoke, pollen, pet hair and dander,...
  • Recommended to change filter once every 5 years under normal conditions, and more often under harsh air conditions.
  • Package contains one (1) HEPA filter, two (2) pre-filters.
  • Approximate Dimensions - Diameter: 13.5", Inner Diamter: 7.25", Height: 14.5"
SaleBestseller No. 13
Honeywell Premium Odor-Reducing Air Purifier Replacement Pre-Filter, HRF-APP1 / Filter (A+)
  • TRAP UNWANTED PARTICLES: This Certified Honeywell A+ filter the air and traps larger particles such as lint, fibers and pet hair For best results,...
  • UNWANTED SMELL REDUCING FILTER – This A+ air purifier replacement filter includes zeolite and activated carbon for extra unwanted smell reduction...
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME - This air purifier filter can be easily cut to size to fit any Honeywell HEPA Air Purifier models Replace...
Bestseller No. 14
HPA300 HEPA Filter Replacement Compatible with Honeywell Air Purifiers by Airity | Honeywell Air...
  • Honeywell HPA300 Compatible HEPA Air Purifier Filters – Our True HEPA H13 filters capture 99.97% of airborne particles up to 0.3 microns in size....
  • Perfect to Remove Dust, Pollen, and Odors – Airity’s premium HPA300 HEPA filter replacement (Honeywell R Filter) and activated carbon prefilters...
  • Premium Medical Grade Quality – Airity HEPA 13 / MERV 17 filters are a premium medical grade quality HPA300 HEPA filter replacement. Combined with...
  • Designed for Honeywell HPA300 Series – The Airity HPA300 HEPA Filter Replacement Pack contains HEPA 13 Filters & Activated Carbon Prefilters...
  • Amazing Value – This all-in-one complete Honeywell HEPA filter replacement set contains 3 True HEPA Premium Air Purifier R Filters and 4 Premium...
Bestseller No. 15
Fette Filter Pack of 2 Carbon Pre-Filter Rolls | Compatible with Honeywell HRF-AP1, Filter A –...
  • ✔️KEEPS YOUR AIR CLEAN AND FRESH: These carbon pre-filters help trap larger particles of dust, lint, fibers, and pet fur, giving your HEPA filters...
  • ✔️COMPATIBLE WITH MULTIPLE AIR PURIFIER MODELS: Our pre filter rolls are just what you need if you own Honeywell 50000 series, 17000 series, 18150...
  • ✔️ALLOWS A CUSTOM SIZE: Each roll measures 47” x 15.5” and allow you to cut it to a desired size depending on your air purifier. Each filter...
  • ✔️PREMIUM QUALITY: These carbon filters are made from heavy duty material making them excellent pre-filters for any use. They are dense and...
  • ✔️DELIVERS VALUE FOR MONEY: Using these prefilters reduces the demand on your HEPA filter. As a result, you can expect a longer life from your...
Bestseller No. 16
Impresa 3 Pack Replacement Washable Pre-Filters for Blueair Blue Pure 211+ Lunar Rock Color
  • Blueair Blue Pure 211 Air Purifier Replacement Pre-Filters: Pack of 3 gray slip-on fabric pre-filters are compatible with the Blueair Blue Pure 211+...
  • Buy Fewer Expensive Filters: Effectively prevents larger particles from reaching your main filter, extending its life and maintaining optimum filter...
  • Effectively Traps Dust, Dander, Pet Hair, Lint & More: High-quality pre-air filter fabric has a specially designed thread density to trap common...
  • Ultra Easy 'Slip On Slip Off' Machine Washable Design: So easy to remove and clean. Simply machine wash and hang to dry for a perfect fit time after...
  • Extra Value Pack Of 3: With this value pack of 3 Blueair Pure 211+ Air Purifier Replacement Pre-Filters, you can rotate pre-filters so you'll always...
Bestseller No. 17
Mchillnet Replacement Filters for Bissell Air320 Air220 2609A Air Purifier, 2678 HEPA Filter +...
  • Compatibility:The premium 2678 Replacement HEPA Filter & Pre-Filter + 2677 Replacement Carbon Filter fully compatible with BISSELL Air220 and Air320...
  • Value Package: This Set of Filter Replacement includes 1 H13 Grade True Hepa Filter and Pre Filter (Compare to Bissell air220 2678 Filter) + 1...
  • True HEPA Filter:2678 True HEPA Filter Captures 99.97% of airborne particles down to 0.3 microns in size, effectively cleaning fresh air for your...
  • Activated Carbon Filter: High-grade 2677 activated carbon filter efficiently traps large particles in the air like dust, pet fur, lint, and absorbS...
  • Easy to Install: Easy to replace and disposable, no tools required. It is recommended to replace the True HEPA Filter every 6 months or depending on...
Bestseller No. 19
Compatible for Honeywell Odor Reducing Air Purifier Replacement Pre-Filter 2 Pack, HRF-B2 /Filter...
  • Compatible Honeywell Replacement Odor-Reducing Pre-Filters B for Air Purifiers - 2 Pack by CFS
Bestseller No. 20
Dekiru Carbon Activated Filter Precut for HPA300 Prefilter Compatible with Honeywell Air Purifier...
  • Air purifier pre-filter: good size compatible with HEPA air purifier, performs well with front line of filtering,Good product for keeping fresh air...
  • Made from Premium Quality Activated Carbon to help keep your home smelling fresh and odor free. Ideal for air purifiers for home replacement activated...
  • High Quality: Carbon activated pre-filters manufactured by Our Filters with advanced filter technology, will extend the life of the true HEPA filters.
  • Eco-friendly absorbing material: absorbent and filterable activated carbon, keep the carbon filter changed every 2-3 months, in order to keep good...
  • 100% Satisfaction Shopping: We are confident you will love our high quality product. We offer 24 hours online service and friendly customer service.

Having trouble finding a great pre filter for air filter?

This problem is well understood by us because we have gone through the entire pre filter for air filter research process ourselves, which is why we have put together a comprehensive list of the best pre filter for air filters available in the market today.

After hours of searching and using all the models on the market, we have found the best pre filter for air filter for 2023. See our ranking below!

How Do You Buy The Best Pre Filter For Air Filter?

Do you get stressed out thinking about shopping for a great pre filter for air filter? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching pre filter for air filter, which is why we have assembled a comprehensive list of the greatest pre filter for air filter available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for pre filter for air filter that you consider buying. Your questions might include the following:

  • Is it worth buying an pre filter for air filter?
  • What benefits are there with buying an pre filter for air filter?
  • What factors deserve consideration when shopping for an effective pre filter for air filter?
  • Why is it crucial to invest in any pre filter for air filter, much less the best one?
  • Which pre filter for air filter are good in the current market?
  • Where can you find information like this about pre filter for air filter?

We’re convinced that you likely have far more questions than just these regarding pre filter for air filter, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for pre filter for air filter, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible pre filter for air filter. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an pre filter for air filter buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available pre filter for air filter currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of pre filter for air filter has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an pre filter for air filter?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your pre filter for air filter.
  5. Customer Ratings: Number ratings grade pre filter for air filter objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their pre filter for air filter.
  7. Product Quality: You don’t always get what you pay for with an pre filter for air filter, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an pre filter for air filter is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining pre filter for air filter information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding pre filter for air filter is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the best indoor air filter?

A: Best: AIR Doctor Air Filter. Best: Austin Air Filter. Honorable Mention. The Bottom Line on Air Filters. There is some debate as to whether air filters are really necessary for a healthy home. True, you can do a lot for your indoor air with a few well-chosen indoor plants and it is the most natural and inexpensive way to purify indoor air.

Q: Which air filter should I get?

A: Only filters out the largest of particles Not great for people with allergies or asthma Recommended Use: Industrial

Q: How do I replace my air filter?

A: Service switch Control module Two front height sensors One rear height sensor Compressor and drier assembly (includes vent solenoid) Air lines Front and rear air spring and shock absorber assemblies Four air spring solenoids Compressor relay Vehicle Dynamic Module (VDM) Diagnostic Trouble Code (DTC) Index NOTE: Repair all other DTCs before C1725 and C1726. …

Q: Should I replace air filter?

A: If you don’t drive a lot, an air filter should be replaced at least every 3 years, as with age it becomes brittle. An old filter can tear, allowing dirt and sand to enter the engine.

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