Say goodbye to airborne dust, dust mites and  pollen!

Air Sponge frames are constructed of heavy-gauge aluminum and a dust grabbing, charged electrostatic screen.  Each frame is made precisely to your exact filter size. 
Another great feature is the patented anti-bypass seal, it insures the filter seals firmly - preventing bypass -- cleaning 100% of your air.  The frame is permanent and backed by a lifetime warranty, so you'll never need to buy another!

Your Air Sponge Custom Frame houses replaceable BioSponge Plus inserts, not only do these remarkable inserts eliminate the filter as a potential breeding ground for micro-organisms, it also controls airborne germs with its Aegis microbe shield.  This germ fighting media features a special dual density design to allow for a extended 60 day filter life and, are up to 600% more efficient then ordinary throw away type filters!   Replacement is a breeze, just peal out the dirty insert and replace with a fresh one. 

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