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 5945-01-185-9379
NSN 5985-01-394-5949
NSN 6650-01-485-8536
NSN 5855-01-362-6532
NSN 5950-01-376-7623
NSN 5935-01-255-0817
NSN 6145-01-626-0478
NSN 6620-00-430-5727
NSN 6320-01-227-2648
NSN 5895-01-107-3173
NSN 5910-00-023-1728
NSN 5895-01-415-5786