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 4140-01-476-9406
NSN 5915-01-467-4468
NSN 5999-00-939-7462
NSN 2925-01-254-8925
NSN 5930-01-358-4495
NSN 4140-01-099-1698
NSN 5935-00-493-6521
NSN 5905-01-537-9647
NSN 5835-00-185-4919
NSN 5925-00-553-2500
NSN 6105-01-558-0905
NSN 6220-00-258-2967