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 6150-00-274-5571
NSN 5985-01-616-2504
NSN 6645-00-155-2398
NSN 7035-01-463-6559
NSN 6650-00-322-6140
NSN 5895-01-413-8297
NSN 5999-01-534-1829
NSN 5990-01-544-4360
NSN 6135-01-220-7193
NSN 2925-00-480-9068
NSN 6320-01-166-3602
NSN 6645-01-430-8992