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 5855-01-605-2438
NSN 5915-01-100-3241
NSN 5835-01-227-4752
NSN 5960-01-504-3415
NSN 5998-01-649-3464
NSN 6220-01-463-2252
NSN 6320-01-185-3857
NSN 6685-00-754-7495
NSN 6620-01-423-0833
NSN 6105-01-322-7653
NSN 6320-00-456-2092
NSN 6240-00-467-7295