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 6650-01-474-8459
NSN 2925-01-645-2948
NSN 4140-01-542-6527
NSN 6130-01-601-6221
NSN 6110-01-464-0673
NSN 5905-01-322-4901
NSN 5945-01-044-5291
NSN 6620-01-106-3553
NSN 5920-01-449-0927
NSN 6610-01-099-0303
NSN 5835-01-005-8564
NSN 6130-01-198-3313