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 5990-01-501-2579
NSN 6105-01-483-1506
NSN 6130-00-733-9352
NSN 5998-01-366-5310
NSN 5855-00-560-0110
NSN 5975-00-670-5213
NSN 5990-01-276-8122
NSN 5835-01-200-7153
NSN 5925-01-633-2302
NSN 6110-01-004-9870
NSN 5935-00-233-9894
NSN 6645-01-259-7142