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 2925-01-254-3068
NSN 5935-01-050-9064
NSN 6130-01-041-0116
NSN 6110-00-868-0350
NSN 5950-01-033-6114
NSN 5910-01-435-6053
NSN 5975-00-840-0045
NSN 5920-01-576-3583
NSN 6150-01-646-6296
NSN 5895-01-237-1619
NSN 5985-01-343-9148
NSN 4140-01-071-2977