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 7035-01-444-4240
NSN 7035-00-445-9657
NSN 7035-00-631-3782
NSN 5835-01-373-3498
NSN 6130-00-914-1617
NSN 5930-01-478-9048
NSN 5930-01-253-4099
NSN 5920-01-187-2267
NSN 5965-01-558-3425
NSN 4140-01-038-3532
NSN 5855-01-235-5491
NSN 6135-01-104-3790