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 6240-01-463-8276
NSN 6650-01-112-0453
NSN 2925-00-422-5159
NSN 6645-01-068-3042
NSN 6610-01-374-6505
NSN 6320-01-262-8642
NSN 5998-01-568-7716
NSN 5935-00-605-1673
NSN 5915-01-361-9026
NSN 5945-01-003-9426
NSN 7035-00-631-3782
NSN 6610-00-405-0513