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 4140-01-284-6485
NSN 5905-00-731-8668
NSN 6650-01-407-4653
NSN 6135-01-056-4609
NSN 5855-01-474-6456
NSN 5925-01-288-0025
NSN 5990-01-370-4785
NSN 5910-01-470-8625
NSN 5985-01-050-8231
NSN 6130-01-621-8545
NSN 6220-00-837-2176
NSN 5915-01-308-0957