Health Smart Universal Air Filter

Yes, this is the air filter you have been looking for. Think of it...now you can have a high efficiency air filter to fit any size. And it does not stop at convenience, we've equipped this break-through air filter design with a BioSponge+ filter media, perfect for controlling those airborne germs. Unlike other adjustable filters, Air Sponge air filters feature a patented "form-fit" anti-bypass seal, to insure 100% air filtration.