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 6240-01-612-0050
NSN 6620-01-063-6289
NSN 6150-01-181-2723
NSN 5910-01-368-6785
NSN 5935-01-210-0121
NSN 6150-01-335-6893
NSN 5835-01-108-4980
NSN 6110-00-840-6560
NSN 6620-00-438-1993
NSN 5905-01-630-5357
NSN 5920-01-128-3572
NSN 6645-00-192-1152