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 6240-01-422-1878
NSN 6150-01-449-6920
NSN 6620-01-483-8189
NSN 5915-01-171-1746
NSN 5920-00-339-0338
NSN 5915-01-012-7052
NSN 7035-00-727-4068
NSN 6240-00-559-3625
NSN 6135-00-826-4798
NSN 6620-01-534-7180
NSN 6220-00-225-8345
NSN 5965-00-823-8623