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 5920-00-137-1135
NSN 6650-01-145-9570
NSN 5950-01-474-6085
NSN 5960-01-025-2526
NSN 5960-01-350-4288
NSN 6110-01-273-7856
NSN 6110-01-222-0767
NSN 6220-01-451-7083
NSN 5920-01-557-8492
NSN 6240-01-537-3218
NSN 6620-01-104-2699
NSN 5999-01-586-0356