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 6135-00-422-3967
NSN 6610-01-157-0426
NSN 5985-01-457-7716
NSN 6650-01-607-6888
NSN 5945-00-120-9310
NSN 5855-00-610-4052
NSN 6135-01-222-0703
NSN 5975-01-447-2387
NSN 5985-01-380-6289
NSN 4140-01-098-0213
NSN 5985-00-297-7526
NSN 6240-01-170-0704