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 6610-01-483-1317
NSN 6150-00-905-8277
NSN 6645-01-113-6712
NSN 5999-00-937-6974
NSN 6240-01-449-1387
NSN 5950-00-092-6341
NSN 6320-00-593-0379
NSN 5985-01-446-6868
NSN 5975-01-645-6843
NSN 5920-01-474-5404
NSN 6135-00-231-7257
NSN 6620-01-232-0680