A replaceable device designed to remove dust, pollen or other foreign matter from the air passing through it. The removal of particles is accomplished by porous, fibrous or shredded material (metallic or non-metallic) which is loosely woven or matted, the shape of which may be maintained by stiffening or binding material. It is designed to fit into a filter element, air conditioning or for direct application to air conditioners, ventilation systems, hot air furnaces, and electrical and electronic equipment which have retaining devices. It may be furnished in custom size form or in a continuous length. Excludes filtering pad, air cooler; and filtering roll, air conditioning. Excludes bulk materials not specifically designed for filtering. See also insulation blanket, thermal; plastic material, cellular; rubber sheet, cellular.
NSN 6220-00-517-9300
NSN 6320-00-886-9771
NSN 5998-01-623-5487
NSN 5855-01-469-6123
NSN 5985-00-473-2161
NSN 6645-01-199-7553
NSN 5985-01-602-6015
NSN 2925-01-219-9471
NSN 6220-00-104-7872
NSN 5925-01-614-5621
NSN 5990-01-591-0701
NSN 5990-01-215-5997