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 6135-01-632-2217
NSN 6150-00-067-0145
NSN 6610-00-862-3597
NSN 5990-01-370-5684
NSN 6685-01-507-8499
NSN 5855-01-597-4404
NSN 6135-01-548-1423
NSN 6240-01-041-5894
NSN 6130-01-282-2967
NSN 5998-01-328-1676
NSN 5905-00-568-2206
NSN 5925-01-009-5626