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 6610-01-055-0468
NSN 5960-01-120-4893
NSN 5930-01-503-0211
NSN 5998-01-125-5474
NSN 6135-00-726-4142
NSN 5960-01-495-0859
NSN 6320-00-306-0124
NSN 5960-01-493-3948
NSN 4140-00-172-1804
NSN 5975-00-854-6519
NSN 5925-00-402-3713
NSN 6105-01-367-1501