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 5985-01-254-8250
NSN 7035-01-485-2134
NSN 6105-01-290-4738
NSN 6145-01-200-8643
NSN 5905-01-357-4192
NSN 6620-01-255-7757
NSN 6645-01-580-3258
NSN 5835-00-853-7785
NSN 5975-00-226-1167
NSN 5985-01-401-5387
NSN 4140-01-535-6477
NSN 6135-00-235-1938