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 5920-01-482-2424
NSN 6620-00-068-2503
NSN 5990-00-258-0228
NSN 5925-01-143-6576
NSN 5985-01-587-1317
NSN 5945-01-318-0323
NSN 6110-01-173-0694
NSN 6105-01-310-5459
NSN 6220-01-091-2470
NSN 6320-00-809-5744
NSN 6645-00-450-2209
NSN 6110-00-024-1051