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 5999-01-483-1045
NSN 5895-01-532-9653
NSN 7035-01-364-8454
NSN 6645-01-600-2080
NSN 5895-00-079-1314
NSN 5905-00-189-8713
NSN 6620-01-549-6653
NSN 6320-01-157-9076
NSN 6110-01-528-7161
NSN 5930-01-017-1112
NSN 5920-01-483-2299
NSN 4140-01-023-8098