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 5910-01-608-2076
NSN 6645-01-137-6048
NSN 5945-01-535-6385
NSN 6110-01-066-8038
NSN 5895-01-431-8612
NSN 6685-00-227-0212
NSN 4140-01-290-4026
NSN 7035-01-048-7122
NSN 5925-00-458-6973
NSN 7035-01-592-7756
NSN 6620-00-995-9426
NSN 4140-00-922-2210