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 6105-00-173-2773
NSN 6685-01-250-2136
NSN 6135-00-932-3136
NSN 5925-01-176-8415
NSN 6620-00-589-8593
NSN 6620-01-500-9847
NSN 5935-01-290-3851
NSN 6135-00-351-8606
NSN 5945-00-311-6507
NSN 5935-00-571-1413
NSN 6650-01-415-4484
NSN 5960-01-262-5048