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 5985-01-052-5959
NSN 5920-01-047-2901
NSN 5999-01-480-6509
NSN 5905-01-022-7150
NSN 6645-01-412-6580
NSN 5915-00-232-3387
NSN 6650-01-372-2606
NSN 5930-01-460-3984
NSN 5985-01-295-8590
NSN 6130-01-450-9915
NSN 5945-01-469-8864
NSN 5996-01-088-1622