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 4140-01-327-5402
NSN 6145-01-366-3257
NSN 2925-00-790-6949
NSN 6620-01-261-0054
NSN 7035-01-568-5351
NSN 6150-00-636-8938
NSN 2925-01-055-7607
NSN 5945-01-260-5301
NSN 7035-01-599-9942
NSN 6320-01-276-4739
NSN 6145-01-323-8813
NSN 5835-00-546-4898