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 5895-01-464-6306
NSN 5998-01-025-4118
NSN 6650-01-467-2355
NSN 6145-01-006-6984
NSN 6220-01-392-9070
NSN 2925-00-115-5857
NSN 2925-01-134-9175
NSN 5998-01-202-9379
NSN 6145-00-785-4112
NSN 5905-01-329-4541
NSN 5950-01-630-5653
NSN 6685-01-068-9010