10 Best Furnace Air Filters Reviewed as of May 2024

Reviews Scanned

Filtrete 20x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size19.69x24.69x0.81 in)

MAKE YOUR HOME YOUR SANCTUARY: 6-pack of 3-month pleated Filtrete 20x25x1 MPR 300 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.69 x 24.69 x 0.81
EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
COUNTLESS PARTICLES: With a 300 MPR and MERV 5 rating, your Filtrete Filter will help capture many particles from the air passing through it
VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system

Filtrete 20x25x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2 Pack (Actual Size 19.688 x 24.688 x 0.84 in)

MAKE YOUR HOME YOUR SANCTUARY: 2-pack of 3-month pleated 1” Filtrete 20x25x1 MPR 1000 AC Furnace Air Filter helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment
DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.69 x 24.69 x 0.81
EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
COUNTLESS PARTICLES: With a 1000 MPR and MERV 11 rating, your air filter will help capture many microparticles from the air passing through it
VERSATILE USES: Works for changing the air filters in your furnace, air conditioner/heating system or HVAC system

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Aerostar 16x25x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4"x 24 3/4" x 3/4"), White

Nominal size: 16x25x1; Actual size 15 3/4"x 24 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
100% synthetic electrostatic media for high efficiency with low air flow resistance
Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

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Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches)

20x20x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.50" x 19.50" x 0.75"). Please note that you may receive filters with a different label, frame, or media color than what is pictured. Any such alteration is purely cosmetic, meaning your air filter will function exactly as described regardless of the changes to these branded elements
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
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
All components are manufactured within the United States and designed with recyclable materials

Sale5

Filterbuy 16x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.50 x 24.50 x 0.75 Inches)

16x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 15.50" x 24.50" 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
Electrostatically charged, pleated filters capture more harmful particles, last 3x longer than fiberglass models, and are 100% manufactured within the United States
Industrial grade beverage board (recyclable) frames with dual wire backings improve structural integrity and outperform standard cardboard designs
If you receive items with a different label, frame, or media than what is pictured, please note that any such alteration is purely cosmetic and your filter will still function exactly as described

Filterbuy 20x25x4 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.38 x 24.38 x 3.63 Inches)

20x25x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.38" x 24.38" x 3.63"). Please note that you may receive filters with a different label, frame, or media color than what is pictured. Any such alteration is purely cosmetic, meaning your air filter will function exactly as described regardless of the changes to these branded elements
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
Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
All components are manufactured within the United States and designed with recyclable materials

Sale7

Aerostar 16x25x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4" x 24 3/4" x 3/4")

Nominal size: 16x25x1; Actual size: 15 3/4"x 24 3/4" x 3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10
Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria
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
100% synthetic electrostatic media for high efficiency with low air flow resistance
Manufactured by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Filtrete 16x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month, 4-Inch Air Filters, 4 Filters (15.88 in x 24.56 in x 4.31 in)

Actual filter size is: 15.88 in x 24.56 in x 4.31 in
This filter is compatible with Honeywell furnaces calling for a 4 filter
1 Recommended Brand (Filtrete Brand is the most recommended brand of HVAC Air Filters based on the US Filtrete Brand Health Tracker, Ipsos, June 2022)
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
FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 12 months for 4 in

AprilAire 213 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 2)

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
EASY AS 1-2-3 TO INSTALL in the unique AprilAire Interlock Rail System. Unpack. Slide in. Close the door. Done. No assembly or cardboard or metal reinforcements needed.
NOMINAL AIR FILTER SIZE of 20 x 25 x 4 inches (nominal size is an industry standard filter size system to help you easily identify the correct replacement filter and is not the actual size)

CoreCarbon 20x30x1 Cut To Fit Furnace & Air Conditioner Washable Polyester Fiber Filter Media (20 x 30)

CUT TO FIT: Simply cut to any size needed from this 20"x30"x1" pad
WASHABLE: Rinse with low pressure water, allow to dry and reinstall.
MADE IN USA: Polyester Washable Furnace / Air Conditioner Door Replacement Filter Media
PERFORMACE: Proper balance of Air Flow and Performance
DESIGNED TO FIT: Many brand name furnaces / air conditioners - Measure existing filter and cut to fit.

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