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 5935-00-807-9985
NSN 5945-01-221-2327
NSN 5990-01-370-5684
NSN 5996-01-266-2283
NSN 5930-01-593-2629
NSN 5960-00-916-1071
NSN 6320-00-433-2773
NSN 5975-01-381-3543
NSN 5925-00-125-0853
NSN 2925-01-276-6100
NSN 5910-01-150-0593
NSN 5935-01-320-4954