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 6110-01-605-0883
NSN 5855-01-601-7005
NSN 5905-00-157-2197
NSN 6610-01-013-8922
NSN 5835-01-612-4753
NSN 5925-01-232-0841
NSN 5996-00-420-1408
NSN 5920-00-137-5026
NSN 4140-00-269-5795
NSN 5895-01-063-7400
NSN 5945-01-574-2178
NSN 6240-00-777-4263