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 6610-01-023-1918
NSN 6610-00-520-6193
NSN 5950-01-159-3310
NSN 4140-01-347-6503
NSN 5960-01-328-8248
NSN 6110-00-146-2114
NSN 6685-01-408-7758
NSN 5975-01-218-4407
NSN 5999-01-431-3740
NSN 5975-01-223-5387
NSN 6320-01-198-4024
NSN 6145-01-393-5387