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 6610-01-202-7404
NSN 5965-01-398-9579
NSN 5985-01-459-1637
NSN 5960-01-202-6610
NSN 6645-00-975-6941
NSN 5945-00-494-3310
NSN 5965-01-629-0975
NSN 6150-00-355-0461
NSN 4140-01-381-3221
NSN 5920-01-328-7911
NSN 5985-01-471-7205
NSN 5935-00-513-2368