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 5855-00-586-6255
NSN 5965-01-504-2340
NSN 6130-01-381-0896
NSN 6135-00-422-3967
NSN 5990-00-616-4289
NSN 5915-01-363-1696
NSN 5965-00-831-2134
NSN 5920-01-354-6243
NSN 5945-00-167-7544
NSN 5905-01-390-2497
NSN 4140-00-419-0631
NSN 5935-00-549-8609