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 6645-01-270-6806
NSN 2925-01-432-6520
NSN 6135-01-441-0518
NSN 6220-00-946-1117
NSN 4140-01-354-5971
NSN 6145-01-648-9628
NSN 5910-00-069-7598
NSN 6610-00-891-2272
NSN 5965-00-985-9157
NSN 6645-01-538-9655
NSN 6145-01-457-6719
NSN 5930-00-288-0516