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 5920-01-252-4406
NSN 6150-01-332-4727
NSN 6240-00-893-4799
NSN 5895-01-562-3434
NSN 5935-01-359-9331
NSN 6620-01-542-8709
NSN 5915-01-223-6411
NSN 5965-01-046-9619
NSN 5930-00-971-6950
NSN 4140-01-260-6182
NSN 6110-01-345-8240
NSN 6135-00-998-5884