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 6650-00-175-7520
NSN 6220-01-157-2930
NSN 5985-01-384-2725
NSN 6145-00-786-7980
NSN 5985-01-293-9219
NSN 5925-01-561-4264
NSN 5895-01-607-8466
NSN 6110-00-762-2851
NSN 6220-01-027-1294
NSN 5855-01-519-4632
NSN 5998-01-442-5500
NSN 5965-00-465-9566