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 6110-01-124-1546
NSN 7035-01-432-2424
NSN 5945-01-532-5711
NSN 5965-00-677-1461
NSN 5965-01-654-4571
NSN 5855-00-256-5562
NSN 6220-01-434-7506
NSN 5985-01-575-5572
NSN 5855-01-184-8089
NSN 6645-01-382-4940
NSN 6650-01-431-8933
NSN 6220-01-099-6581