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 6145-01-128-1156
NSN 5930-01-136-7301
NSN 5960-01-026-9005
NSN 5835-01-442-6482
NSN 5905-00-193-2138
NSN 5975-01-420-4549
NSN 5945-01-113-8277
NSN 5960-01-363-0215
NSN 5920-00-636-4713
NSN 5975-01-013-2391
NSN 5975-01-462-5846
NSN 6610-01-013-8922