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 6610-00-664-2190
NSN 5930-01-528-6950
NSN 6240-01-479-4504
NSN 5910-01-591-7899
NSN 5945-01-614-0484
NSN 6130-01-380-4268
NSN 6105-01-422-1336
NSN 5925-01-045-5316
NSN 6110-01-250-1938
NSN 2925-00-446-8904
NSN 6110-00-838-0492
NSN 6645-01-281-7254