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 5915-01-115-7139
NSN 6685-00-515-5369
NSN 5915-00-161-3158
NSN 2925-01-487-0886
NSN 6220-01-642-8678
NSN 6610-01-481-0469
NSN 6650-01-307-6009
NSN 5835-01-440-5391
NSN 5930-01-391-8430
NSN 6240-00-187-4306
NSN 5996-01-328-8018
NSN 6240-01-301-8668