AirSafe™ Furnace Filter Frame Only



Custom Size

If you require custom sizing, please specify the size of your filter below (length” x width”)

Frequently Bought Together

Add 3-Pack Filters (Same Size as Frame)

ThermoPro Touch Screen Wireless Humidity Monitor

In stock (can be backordered)

SKU: CSN-AS-STPK Category:


SHIPPING Included Continental U.S.

  • Reusable Frame
  • Lifetime Warranty
  • 100% Satisfaction Guarantee
  • Made in the U.S.A.
  • Easy to Install
  • Requires Purchase of Filter Media

AirSafe™ Furnace Filters are now exclusively distributed by Crawl Space Ninja.

AirSafe Furnace Air Filters logo

About AirSafe

AirSafe™ Furnace Filters are the highest quality residential furnace filter for controlling dust, pet dander, cigarette smoke, dust mites, pollen, ragweed, mold spores, and other indoor allergens.

Our one of a kind furnace filter frame is hand made in East Tennessee. It is the only furnace filter frame designed to stop allergens from entering your A/C system and ductwork. The triple defense polyester filtration media is disposable and easily installed in our furnace filter frame to catch and hold more indoor allergens than any other furnace filter you can buy. You can rest easy knowing that our unique frame and filter media work together to keep your home free of indoor allergens.

Simply put, the AirSafe™ Furnace Filter is the best on the market at capturing dust and allergens.

Filter Starter Pack

The AirSafe™ Furnace Filter Starter Pack has everything you need to get started. It comes with a custom frame sized just for your return and two AirSafe™ filters.

Check out the video below to learn how to install your new frame and filter.

Need to reorder filters? Click here.


Additional information

Weight 3 lbs
Dimensions 25 × 30 × 3 in
Filter Size

10x10x1, 10x12x1, 10x14x1, 12x12x1, 12x18x1, 12x20x1, 12x24x1, 12x30x1, 14x14x1, 14x20x1, 14x24x1, 14x25x1, 14x30x1, 16x16x1, 16x20x1, 16x24x1, 16x25x1, 16x30x1, 18x18x1, 18x20x1, 18x24x1, 18x30x1, 20x20x1, 20x24x1, 20x25x1, 20x30x1, 24x24x1, 24x30x1, 25x25x1, 25x30x1, 30x30x1, Custom (specify below)


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