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 7035-00-574-4223
NSN 5985-01-597-6119
NSN 6145-00-689-4215
NSN 5950-00-863-1009
NSN 5950-01-181-4668
NSN 5910-01-541-9029
NSN 6150-00-910-3934
NSN 2925-00-824-2186
NSN 5985-01-168-1414
NSN 7035-01-079-1514
NSN 5950-01-310-9369
NSN 5950-01-362-6964