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 6240-01-276-4954
NSN 5985-00-163-5347
NSN 6320-01-600-5808
NSN 6320-01-452-2394
NSN 5975-01-646-2369
NSN 5930-01-609-7627
NSN 6145-00-038-3369
NSN 5855-01-596-3823
NSN 5960-01-589-5236
NSN 5960-01-260-3973
NSN 6645-00-641-3202
NSN 6145-01-347-5991