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 5985-01-208-9917
NSN 6320-00-823-2015
NSN 5925-01-462-1603
NSN 5910-01-443-2462
NSN 6320-00-468-8421
NSN 4140-01-236-6637
NSN 6650-01-322-4415
NSN 5960-00-129-6660
NSN 5950-01-304-3314
NSN 5960-01-274-7628
NSN 6620-01-656-1896
NSN 4140-00-733-7936