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 5996-01-086-1985
NSN 5925-01-089-4946
NSN 5965-01-574-0084
NSN 7035-01-406-6510
NSN 5960-01-056-4982
NSN 5950-00-610-0553
NSN 5996-01-385-0884
NSN 5905-01-059-2580
NSN 2925-01-658-4470
NSN 5975-01-111-9988
NSN 5996-00-338-9760
NSN 5975-00-529-3835