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 5895-01-171-4583
NSN 5945-00-785-8562
NSN 5975-01-634-0678
NSN 6685-01-633-3556
NSN 5998-01-433-2531
NSN 5935-01-216-5316
NSN 5855-01-594-7809
NSN 5925-01-135-7038
NSN 5975-01-562-8251
NSN 5945-01-220-4647
NSN 6650-00-339-5458
NSN 6150-00-630-0537