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 6240-01-610-6150
NSN 6145-01-624-8760
NSN 6645-00-983-2046
NSN 5975-01-605-5714
NSN 5835-01-412-0344
NSN 6240-00-691-1397
NSN 5960-01-122-1101
NSN 5925-00-943-4489
NSN 6620-00-953-8570
NSN 6145-01-406-8024
NSN 5920-00-398-0766
NSN 5930-01-551-1819