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 6130-00-444-4871
NSN 5925-01-286-1551
NSN 5945-00-311-6507
NSN 5905-00-073-9194
NSN 5920-01-351-5535
NSN 6105-00-081-9090
NSN 6105-01-551-3328
NSN 7035-00-574-4223
NSN 5950-01-537-9763
NSN 5915-01-068-7802
NSN 5950-01-149-7020
NSN 6130-01-449-1552