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 5945-00-931-4870
NSN 5935-01-020-6654
NSN 5960-01-570-8605
NSN 5996-01-576-6741
NSN 6110-01-259-8224
NSN 6650-00-751-9958
NSN 2925-01-501-1104
NSN 7035-01-550-5603
NSN 5910-01-355-8782
NSN 5950-01-471-3504
NSN 5920-01-401-5315
NSN 5950-00-124-0033