Quality Air Filters at Factory Direct Prices

If you're looking for affordable, top-quality replacement air filters for your home or business, you'll find them at Factory Direct Filters. Shop custom to standard sizes, MERV 8 to 13 ratings, and everything in between, and buy the air filters you need at value, straight-from-the-manufacturer prices. Install our air filter replacements in your house, apartment, office, or business and breathe cleaner, healthier air.

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Shop By Size

Browse standard and hard-to-find sizes for business or house air filters


Shop Custom Air Filters

Create the size you need with FREE Shipping on all orders


Shop By MERV

We offer a large selection of air filters for home or office in different MERV ratings.

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History in the Air Filter Industry

Factory Direct Filters is the industry's leading, direct-to-customer portal for The Filtration Group. Our business was founded in 1942 and has grown into a manufacturer, distributor, and national service provider of a complete line of HVAC air filtration products. With over 75 years of experience in the filtration field, we are confident we can answer any questions or address any concerns regarding your order. Feel free to contact us via chat, contact form, email, or by phone at (855) 740-0855.

Nationwide Air Filter Production & Distribution

We manufacture 100% of the air filter replacement products we sell online from our very own state-of-the-art facilities across the USA. The range of products we produce includes MERV 8, 11, and 13 pleated filters and deep pleated filters. We stock all standard and hard-to-find sizes and can custom-make measurements to your specific requirements. All commercial and house air filters are shipped in 5 days or less.