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 4140-00-428-7589
NSN 6110-00-932-1590
NSN 5910-01-464-1482
NSN 5935-00-932-3835
NSN 6645-00-372-2618
NSN 6650-00-557-5482
NSN 5920-01-335-1897
NSN 6240-00-555-6347
NSN 6130-00-920-7157
NSN 5925-01-553-8498
NSN 5998-01-219-4823
NSN 6320-01-550-3420