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 6650-01-519-8473
NSN 6610-01-559-5073
NSN 6145-01-343-9854
NSN 2925-01-387-0870
NSN 6620-00-928-0227
NSN 5855-01-473-6076
NSN 5998-01-203-8320
NSN 5925-00-876-4074
NSN 5910-01-386-3997
NSN 6685-00-445-1437
NSN 5915-01-502-8853
NSN 6110-01-188-8017