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 2925-01-108-3307
NSN 6610-01-196-9861
NSN 4140-00-247-0613
NSN 6320-00-270-8222
NSN 5985-00-808-0796
NSN 6320-01-631-7828
NSN 5990-01-571-7468
NSN 5910-00-164-9855
NSN 6135-00-574-1204
NSN 6135-01-383-1910
NSN 5945-01-092-4858
NSN 2925-00-234-0479