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 5999-01-198-0632
NSN 6220-01-017-3395
NSN 5999-00-838-8486
NSN 6320-01-033-6624
NSN 5985-01-025-0899
NSN 6650-01-147-3125
NSN 6650-01-142-6438
NSN 6610-00-971-2503
NSN 6685-01-065-2177
NSN 6610-01-272-8625
NSN 4140-00-518-2744
NSN 5835-01-085-9591