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 5895-00-753-5349
NSN 6110-01-471-1438
NSN 6610-01-400-3880
NSN 6135-00-127-1683
NSN 5965-01-122-7477
NSN 6240-01-227-4178
NSN 5996-01-069-2915
NSN 6135-01-187-4382
NSN 5950-00-773-7123
NSN 5960-00-246-4623
NSN 6320-01-459-6992
NSN 2925-01-442-0878