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.