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 4140-00-491-7699
NSN 7035-01-387-0493
NSN 6645-01-205-3869
NSN 5985-01-262-1929
NSN 5998-00-316-3393
NSN 5935-00-232-2869
NSN 6110-00-199-1616
NSN 5835-00-284-0882
NSN 5985-00-989-9659
NSN 5985-00-739-8241
NSN 5960-00-734-1828
NSN 6650-01-207-0039