Air Filters, Furnace Filters and Air Conditioner Filters

replace your air filters
to reduce energy costs

Changing your air filters regularly improves the efficiency
of your furnace and provides clean, fresh air

Shop by Filter Performance Rating (FPR)

We tested each air filter for you, then rated each according to it’s ability to filter small particles.


Learn More

Your Air Filter Search Stops at The Home Depot

Air filters improve your indoor air quality by removing allergens. It’s essential you replace them on a regular basis to keep your HVAC system running efficiently. Furnace filters and air conditioning filters promote healthy living. That’s why we offer a large selection of home air filters in all sizes and brands, custom and hard-to-find sizes. Scented air filters and other air filter accessories can enhance your air system. Consult our Air Filters Buying Guide to help decide the best air filter for you. If you’re having trouble finding your size, enter your size requirement in the search box above.

RELATED PRODUCTS

Breathe cleaner with the Roomaid portable air filtration Breathe cleaner with the Roomaid portable air filtration system by AmairCare. This unit is ideal for bedrooms small offices and other areas where space may be limited; and with the auto adapter kit (sold separately) you can use this unit in cars RVs and motorhomes as well. JAG Plumbing Products ...  More + Product Details Close
Breathe cleaner with the Roomaid portable air filtration Breathe cleaner with the Roomaid portable air filtration system by AmairCare. This unit is ideal for bedrooms small offices and other areas where space may be limited; and with the auto adapter kit (sold separately) you can use this unit in cars RVs and motorhomes as well. JAG Plumbing Products ...  More + Product Details Close
The Climate Right iAirQ450W air purifier offers an The Climate Right iAirQ450W air purifier offers an elegant and effective solution for improving air quality. At the heart of this revolutionary system is the iAirQ filtration technology that effectively traps particles of all sizes. This includes viruses pet dander dust mites and other allergens - even cigarette smoke and ...  More + Product Details Close
Fresh and SnappyPerfectly Designed for Your Child’s RoomThe Fresh and SnappyPerfectly Designed for Your Child’s RoomThe most delightful way to improve Air Quality! Crane’s Adorable Air Purifiers use the Centers for Disease Control recommended combination of Germ-Killing Ultra Violet Technology plus an easy to change True-HEPA Filter that captures particles as small as 0.3 microns and removes up ...  More + Product Details Close