Best 5 Air Conditioner Filters in 2026

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog

BUY WITH CONFIDENCE This genuine AprilAire 213 replacement air filter was designed and manufactured in the USA by AprilAire – the leader in indoor air quality solutions – to optimize the performance of your AprilAire Air Purifier Model: 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, or Space-Gard 2200 with Upgrade Kit 1213

CREATE A HEALTHIER HOME by preventing airborne allergens from circulating through the air in your home. This AprilAire 213 replacement air filter traps common allergy triggers as they pass through the MERV 13 filter including dust, pollen, mold spores, bacteria, pet dander, and dust mites.

BETTER PERFORMANCE thanks to the patented AprilAire Self-Seal Technology which minimizes the amount of air bypassing the filter

20x20x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.50" x 19.50" x 0.75")

MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow

High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models

Nominal size: 16x25x1; Actual size 15 3/4"x 24 3/4" x 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7

Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke

Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months

Nominal size: 20x20x1; Actual size: 19 3/4" x 19 3/4" x 3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.

Designed to filter microscopic particles such as lint, dust mites, spores, and pollen

Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months

OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system

DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through

ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog

16x20x1 MERV 11 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 15 11/16’’ x 19 11/16’’ x 3/4‘’. Comparable with MPR 1000 -1200 & FPR 7. Electrostatically charged filter media with industry leading low air flow resistance.

MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Adopts single sided (one-piece) frame technology to reduce environmental waste and made sustainably from recycled cardboard.

SUPERIOR PERFORMANCE - The BNX MERV 11 100% synthetic electrostatically charged air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to allow for industry leading superior low air flow resistance while maintaining the highest grade level of filtration.

20x20x1 MERV 13 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 19 11/16’’ x 19 11/16’’ x 3/4‘’. Comparable with MPR 1500-1900 & FPR 10. Provides optimal defense with electrostatically charged filter media and industry leading low air flow resistance.

MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Adopts single sided (one-piece) frame technology to reduce environmental waste and made sustainably from recycled cardboard.

SUPERIOR PERFORMANCE - The BNX MERV 13 air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to capture maximum pollen, mold bacteria, smoke, carriers & other microscopic particles while maintaining industry leading superior low air flow resistance.

Nominal Size: 18 x 24 x 1, Actual Size: 17 1/2 x 23 1/2 x 3/4 (17.5 x 23.5 x 0.75)

Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.

Ideal for high efficiency air filtration and will help those with moderate allergies and asthma.

MERV 11

Actual Size: 19-3/4" X 24-3/4" X 4-3/8"

2 Filters

Universally Compatible- This air conditioner, furnace and HVAC filter works with almost any brand. It is comparable to the 3M Filtrete MPR 600 Dust & Pollen, Filterbuy AFB Silver and the Honeywell FPR 5 models.

Create a Cleaner Environment- Entrap air particles that bring harm to you and your loved ones with our Merv 8 pleated air filters that capture dust, lint and pollen. Nominal Size: 20"x23"x1", Actual Size: 19.5"x22.5"x0.75"

Quality That Counts- Our expertly designed pleated filters boast more pleats than your average retail filter, boosting airflow and overall efficiency. Each high-quality filter is meticulously made in the U.S.A. with attention to detail, ensuring optimal performance for your residential home.

BREATHE LIKE ROYALTY: Filter King Merv 8 Rating filters help prevent contaminants such as Lint and Pet Dander. It keeps incoming air flow free from intruding particles, giving you a fresh, clean and healthier environment.

BIG SAVINGS: Our filters are not only good for your health but also your wallet. Replacing air filters can save you thousands of dollars in repairs and can lower your monthly energy bills. Our filters are specifically made for furnace, air conditioner or HVAC systems.

100% MADE IN USA: Not only are all our filters are proudly manufactured and assembled here in the USA but they also comply with all FTC rules and are certified by regulatory bodies such as SafeHome.

Actual Size: 19 1/8 inches (length) x 19 7/8 inches (width) x 4 1/4 inches (depth)

Effective Filtration: MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, lint, debris, mold, pollen, pet dander, and dust mites

High-Quality Contruction: Features an electrostatically charged, pleated design that captures more particles and prolongs the products lifespan by 3 times that of fiberglass models

New MERV 10 (at 492 FPM) performance with lower pressure drop at no additional cost!

Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2 1999!

Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, E2=1.0 to 3.0 microns; and large particles, E3=3.0 to 10.0 microns

Actual filter size is: 15.75 in x 24.125 in x 4.875 in

This filter is compatible with TrionAirBear furnaces calling for a 5" filter

The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it

Enhanced HVAC Effectiveness – Crafted to help improve your home’s ventilation efficiency, proper air flow can help reduce air flow resistance for less HVAC stress.

Cleaner, Healthier Air – These air conditioner filters help purify the air, which can help reduce itchy eyes and sneezing.

Premium Craftsmanship – Each HVAC air filter is crafted with four layers of high-grade aluminum and two layers of electrostatic media for superior reliability.

MERV 10 with No Increased Resistance Over MERV 8. Instant Upgrade From MERV 7 or MERV 8 Pleated Filters

Great For Allergy Sufferers

Expanded Metal Backing on Synthetic Media with Heavy Duty Frame That Resists Moisture.

ENHANCED AIR FILTRATION: Our 16x25x1 air filters are made using an advanced pleated technology that offers more air coverage, better particle capture performance and helps extend the life of your furnace, air conditioner, or HVAC system. Our pleats are designed with wire backed synthetic media. Our 16x25x1 air filters are also made using high quality CNK coated beverage boards.

NEVER WORRY ABOUT YOUR AIR AGAIN: Nobody wants to think of the air they are breathing. Therefore the most prestigious accomplishment a filter can make is to ensure that you are not worrying about the purity of your air. Our Crisp 16x25x1 MERV 11 furnace filters are the ideal choice for anyone wanting clean, crisp air in their home. Our MERV 11 air filters trap debris, allergens such as pollen, dust, pet hair, auto exhaust particulates, and smoke - so you only breathe pure and crisp air.

TOP TIER PERFORMANCE: Utilizing a thicker build and a more pleat-heavy design than most retail air filters, our air conditioner filter offers enhanced airflow and efficiency, better capture coverage, (traps the unwanted particles) AND provides consistent, high performance filtration for up to three months.

MERV 8 AIR FILTER 20x25x6 – Filters Fast Air Filters meet the same quality standards as the name brand filters and we back our 20x25x6 filter with a MERV RATING 8. We are a member of NAFA, The National Air Filter Association. Be wary of cheap filters.

COMPATIBLE WITH – These 20x25x6 air filters MERV 8 are the compatible replacements for Aprilaire SpaceGard 2200, compatible replacement for Aprilaire SpaceGard 2250.

ENHANCE THE AIR QUALITY IN YOUR HOME – The premium MERV 8 rating Filters Fast filters will help with overall air quality while also helping to extend the life of your heating and cooling system.

HQRP® 2-pack Replacement Foam Filter;

Fits any window A/C unit or other filter systems up to 24 X 15 inch; Easy cut foam down to any size;

1/4 inch thick, keeps all dirt and dust out; Helps to remove dust and other contaminants from the air;

Actual Size: 19 3/4 inches (length) x 19 7/8 inches (width) x 4 3/8 inches (depth)

Effective Filtration: MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more

High-Quality Contruction: Features an electrostatically charged, pleated design that captures more particles and prolongs the products lifespan by 3 times that of fiberglass models

►PREMIUM MERV 8 TRIPLE FILTRATION: A vent register and return air register filters kit - Our cut to size air vent filters for home kit is specifically engineered filter material for your home vent filter needs. Our cut to size air filter fabric is 100% polyester that filters unwanted air particles that may cause sneezing, coughing, and red itchy eyes. Prevents debris from falling into the ducts and guards against creepy crawlees travelling in you air ducts.

► QUICK AND EASY INSTALLATION. This cut-to-fit HVAC filter media roll is compatible with all sizes of air vents, registers, and grilles. Covers all types of vents on floors, ceilings, walls, windows, AC vents and HVAC vents. Cut to any standard vent register sizes such as 4"x10", 4"x 12", as a circle vent filter or on return air vents. Perfect for a fan filter, box fan filter, and other DIY projects too!

►THE BEST VALUE MERV 8 VENT FILTER MEDIA ROLL FOR YOUR MONEY! This Kit comes with a 90" x 12" of premium filter material and 24" of adhesive hook tape. Great filter fabric for homes, RV air conditioner filters, RV ac filter, mobile homes, campers, ac vent filter, or as a window ac filter. This washable air filter is multipurpose for other DIY projects too!

Excellent Filtration – Our EconoHome air filters will help you breathe cleaner air indoors. This MERV 11 16x25x4 furnace filters helps catch most airborne particles (lint, fine dust, pet dander, smoke, and more) without impacting the airflow in your home.

Dimensions – This furnace filter actual size: 15-15/16"x24-7/8"x4-3/8

Quick & Easy Installation - Switch off the AC system, remove the old AC air filter, and then slide the new air conditioner filter into place. Please make sure that the arrows match the direction of your system's airflow