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 5920-01-563-8345
NSN 6320-00-779-5923
NSN 6130-00-005-1633
NSN 5975-00-924-8081
NSN 5960-01-169-8215
NSN 5990-00-878-1973
NSN 6130-00-205-1714
NSN 6650-01-337-5309
NSN 5945-01-325-5609
NSN 5925-00-156-4044
NSN 5855-01-453-0449
NSN 2925-00-185-1618