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 6650-01-463-4564
NSN 5985-01-296-2231
NSN 6685-01-443-0596
NSN 5895-01-428-9101
NSN 5935-00-674-6650
NSN 6110-00-596-9124
NSN 5930-01-049-9887
NSN 5990-00-321-8459
NSN 5930-01-337-5067
NSN 5985-01-151-6580
NSN 5985-01-145-0462
NSN 5990-01-013-8464