Design your custom Air Sponge filter.

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"You're about to design your personalized air filter, with just a few clicks of your mouse."

There's never been
a filter like it!

A Perfect Fit

You'll get Air Sponge's patented, custom made air filter frame. This permanent, 100% aluminum frame features a unique form fit seal, to eliminate bypass. And to enhance performance, a permanently attached, electrostatic screen.

We'll make your new frame to any size that you need. That means you will always have a filter that fits perfectly!

Lifetime Warranty

Your Choice: You choose what type of replaceable air filter pad(s) goes inside your frame. Select the media(s) that suits your needs best, you can always switch to a different type when you use them up.

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You will love this air filter.
We guarantee it!

Try it for FREE!
Use your Air Sponge for 60 days. If for any reason you're not
100% delighted, simply return them for a refund.

Not sure which type to choose? Check out our Bestsellers

1.EXACT Size Of Your Filter: X Measuring Help
(Example: 17 3/8 x 23 1/4)

2.Choose Your Main Pad:

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Refill pads only? Click here.

3.Choose Your Permanent 7/8" Frame Type:

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Need a 2" frame?

4.Optional 2nd Pad:
?

Extreme size adjustment: If you have a very small or a very big filter.
UNDER 200 Square inches (minus $10)

OVER 600 Square inches (add $10)		Calculator

	Send Email reminder when it's time to change your filter. (Free)
	Prescription form for your doctor, for health insurance coverage. (Free)

Select the options above and then select

Are Your Measurements Correct?
Ships in less then: 36 hours

UPS GROUND cont. US
LIMITED TIME!

Main filter pads

BioSponge�	Antimicrobial treated; dry tactified polyester media. It’s AEGIS microbe shield not only eliminates the filter as a potential breeding ground for micro-organisms, it also controls airborne germs. replace every 30- 60 days . Arrestance : 87% @ .50" w.g. Airflow: .09" w.g. @ 300 fpm

BioSponge +�	Antimicrobial treated; dry tactified polyester media. features a special dual density design to allow for a extended 60 day filter life and a 60% increase In efficiency over regular BioSponge. Arrestance : 93% @ .50" w.g. Airflow: .19" w.g. @ 300 fpm

PurePleat�	This extended surface filter media is produced from a high quality blend of natural and man-made fibers. Pure Pleat 40 offers an excellent combination of high efficiency and low resistance to air flow. Replace every 90 days. Arrestance : 95% @ .50" w.g. Airflow: .18" w.g. @ 300 fpm

BioPleat	This extended surface filter media is produced from a high quality blend of natural and man-made fibers like the Pure Pleat 40 with the addition of antimicrobial protection. Replace every 90 days. Arrestance : 95% @ .50" w.g. Airflow: .18" w.g. @ 300 fpm

MicroSponge�	It’s special blend of polymers create a high stable active charge on every fiber. Microsponge has the highest efficiency and the lowest pressure drop of any charged media in the world. Replace every 90 days. Arrestance : 97% @ .50" w.g. Airflow: .17" w.g. @ 300 fpm
Odor control
Activated Carbon	Activated carbon acts like a molecular magnet. It’s enormous surface captures and holds gases and odors. It adsorbs odors from pets, cooking, cigarettes, and chemicals. Actasorb can be used with other medias. Replace every 90 days.

Zeolite	A natural earth mineral thermally bonded to polyester. Zeolite has the ability to remove Votile Organic Compounds. It is especially useful in removing Ammonia and ammonium compound odors such as pet odors and urine. Replace every 90 days