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 6645-01-577-2306
NSN 5950-01-007-2632
NSN 2925-01-041-8201
NSN 7035-01-573-2180
NSN 2925-01-515-3032
NSN 6650-00-828-6553
NSN 5905-00-560-8186
NSN 6145-00-515-6931
NSN 6150-00-987-0877
NSN 5935-00-051-1057
NSN 5990-00-436-2224
NSN 5905-01-522-1300