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 6650-01-171-6444
NSN 5985-01-335-8514
NSN 5998-01-229-7692
NSN 5930-01-523-7431
NSN 6620-00-273-8735
NSN 6135-01-122-4448
NSN 5910-01-463-6224
NSN 6610-00-279-8519
NSN 6145-01-323-6509
NSN 5935-01-135-1482
NSN 5920-01-105-8996
NSN 6645-01-514-0236