Filterbuy provides a wide range of air filter sizes, thicknesses, and MERV ratings so you can find reliable aftermarket air filters for residential use as well as commercial or industrial applications.

Our furnace or AC filter orders ship within 24 hours. Find any MERV rating or size you need. All high-quality & American made air filters. Shop now!

Select your air filter based on key factors: household size (400-3000 sq ft), number of occupants, presence of pets, allergy sufferers, and local air quality. For standard homes, choose MERV 8 …

Buy 12x12x1 air filters for your home or office, in any MERV rating. Buy once or subscribe to save 5% on your order. Shop at FilterBuy now!

Buy 12x24x1 air filters for your home or office, in any MERV rating. Buy once or subscribe to save 5% on your order. Shop at FilterBuy now!

We’ve got you covered with the largest selection of air filters available online. Factory Direct Low Prices Proudly Made in the U.S.A.

Filterbuy’s carbon air filters are constructed using pleated filter media, reinforced wire backing for durability, and a heat and humidity-resistant frame for safety and structural integrity. Plus, …

10x10x1 pleated air filters are at least 20 times more efficient than fiberglass filters. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to …

Discover everything you need to know about MERV ratings and MERV rating charts in Filterbuy's comprehensive guide to air filter efficiency. Learn how to choose the best air filters for your …

Buy commercial air filters for your workplace, available in all MERV ratings and sizes. Orders ship within 24 hours, for free. Shop now!