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 5990-01-461-8969
NSN 5935-01-339-2038
NSN 6240-00-126-4551
NSN 5920-01-326-7806
NSN 5835-01-388-5198
NSN 2925-01-043-9786
NSN 6650-01-459-7155
NSN 6620-01-304-4747
NSN 5915-01-451-4332
NSN 6685-00-104-7149
NSN 5935-00-215-4959
NSN 5990-01-263-0362