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 5975-00-124-2979
NSN 6110-01-168-3446
NSN 6645-00-004-8628
NSN 2925-01-570-8065
NSN 6645-01-506-8900
NSN 5835-00-729-9305
NSN 6130-00-216-7376
NSN 6220-01-508-8223
NSN 5999-00-729-7990
NSN 5996-00-190-3384
NSN 5945-01-458-4923
NSN 5935-00-150-8603