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 6220-00-850-0365
NSN 5910-01-472-2785
NSN 5935-01-298-9558
NSN 7035-01-429-5725
NSN 5915-01-351-5656
NSN 5965-01-641-0237
NSN 6240-01-463-3132
NSN 5960-00-484-3746
NSN 6620-01-352-5640
NSN 5985-01-517-3119
NSN 6610-00-111-3159
NSN 6685-01-605-8931