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 6150-01-540-4221
NSN 5930-00-648-6354
NSN 7035-01-421-4446
NSN 5996-01-088-8715
NSN 6685-01-534-9719
NSN 5915-01-431-6951
NSN 5935-01-117-3911
NSN 6320-00-701-0437
NSN 5998-00-111-3300
NSN 7035-00-232-4043
NSN 5895-01-352-6996
NSN 5905-01-361-7268