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 5935-01-316-1143
NSN 5960-00-929-1276
NSN 5998-01-323-5271
NSN 5950-01-015-8858
NSN 5915-00-239-3207
NSN 6620-01-225-4996
NSN 5905-00-232-6637
NSN 6650-00-023-5054
NSN 5905-00-833-7659
NSN 5910-01-604-9141
NSN 5835-01-136-3394
NSN 5975-00-391-1108