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 6220-01-056-8792
NSN 5905-00-609-6966
NSN 5910-01-013-8957
NSN 6645-00-640-9870
NSN 5915-00-452-2227
NSN 5915-00-428-4764
NSN 6645-00-872-8685
NSN 6320-01-425-1417
NSN 5930-01-544-2255
NSN 6240-00-840-3647
NSN 5920-00-757-1900
NSN 5910-01-316-0871