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 2925-01-544-4880
NSN 5920-01-217-0512
NSN 5999-00-443-9737
NSN 5950-01-090-1364
NSN 5975-01-118-8883
NSN 6650-01-302-7684
NSN 7035-00-052-2188
NSN 6145-01-356-3531
NSN 4140-00-225-8586
NSN 5855-00-797-8217
NSN 5925-00-681-1044
NSN 5990-01-436-7191