10 Best Furnace Filters of December 2025

• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 inch 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 large particles such as lint, household dust, dust mite debris and mold spores
• MPR 300 has a rating of MERV 5
• 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
• CHANGE FILTER AT LEAST EVERY 90 DAYS for optimal performance of your heating & cooling system or HVAC system
• FOR RESIDENTIAL use only
• CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool -- wasting energy. Sign-up for a filter change reminder program that works for you

Filtrete

• 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
• 1000 MPR has a rating of MERV 11
• 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
• FIND YOUR SIZE: 1000 MPR available in 4in. , 4in. slim fit and 5in. thick air filters
• FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters, and at least every 12 months for 4 in. and 5 in. filters
• FOR RESIDENTIAL use only
• CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter
• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you!

Filtrete

• MERV 11
• Actual Size: 19-3/4" X 24-3/4" X 4-3/8"
• 2 Filters
• Manufactured by Lennox
• Nominal Size: 20" x 25" x 5"

Lennox

• 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
• 1000 MPR has a rating of MERV 11
• 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
• FIND YOUR SIZE: 1000 MPR available in 4in. , 4in. slim fit and 5in. thick air filters
• FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters, and at least every 12 months for 4 in. and 5 in. filters
• FOR RESIDENTIAL use only
• CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter
• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you!

Filtrete

• 16x25x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen).
• MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components.
• TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality!
• LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use.
• HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy

• Marv 11 16x20x1 furnace filter - premium pleated filter
• Traps mold, pet dander, smoke particles, pollen & dust mite debris for allergen protection
• More pleats than most retail air filters - better energy efficiency & captures more particles
• Made in U.S.A. Max Temperature - 180F (82C) continuous service, peak 225F (107C)
• Compare to 3m Filtrete micro particle mpr800 and Filtrete allergen mpr1200 filters

AIRX FILTERS WICKED CLEAN AIR.

• 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
• 1000 MPR has a rating of MERV 11
• 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
• FIND YOUR SIZE: 1000 MPR available in 4in. , 4in. slim fit and 5in. thick air filters
• FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters, and at least every 12 months for 4 in. and 5 in. filters
• FOR RESIDENTIAL use only
• CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter
• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you!

Filtrete

• BUY WITH CONFIDENCE This genuine Aprilaire replacement air filter was designed and manufactured in the U.S.A. by Aprilaire – the leader in indoor air quality solutions, to optimize the performance of your Aprilaire Air Purifier Model: 1210, 1620, 2210, 2216, 3210, 4200, Aprilaire or Space Gard 2200 with upgrade kit
• CREATE A HEALTHIER HOME by preventing airborne allergens from circulating through the air in your home by trapping common airborne allergens as they pass through the MERV 13 filterincluding dust, pollen, mold spores, bacteria, pet dander, and dust mites
• PROUD PARTNER OF AMERICAN LUNG ASSOCIATION Aprilaire’s mission is to enhance everyone’s health by improving the air in their homes
• 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.

Aprilaire

• 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
• 1000 MPR has a rating of MERV 11
• 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
• FIND YOUR SIZE: 1000 MPR available in 4in. , 4in. slim fit and 5in. thick air filters
• FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters, and at least every 12 months for 4 in. and 5 in. filters
• FOR RESIDENTIAL use only
• CREATE A CHANGE COUNTDOWN in the Filtrete Smart app. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown. When the lifespan is up, you’ll get a notification to change your filter
• OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
• A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program that works for you!

Filtrete

• Actual Size: 15 1/2 x 24 1/2 x 3 5/8 (15. 5 x 24. 5 x 3. 63)
• Attracts indoor allergens, dust, pollen and other airborne contaminants.
• Hypoallergenic and pleated electrostatic filter material. Antimicrobial
• Nordic Pure recommends changing 4" air filters every 3-6 months
• Proudly Made in the USA

Nordic Pure