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 5905-01-444-2300
NSN 5996-00-869-7096
NSN 6135-01-419-9699
NSN 6650-00-918-4156
NSN 5999-01-358-1197
NSN 5930-01-211-6365
NSN 6105-00-773-8480
NSN 2925-00-733-8628
NSN 6145-01-172-3363
NSN 5975-01-201-5497
NSN 5935-01-594-9382
NSN 6610-01-256-5485