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 6240-01-105-1399
NSN 6220-01-462-2613
NSN 5960-00-382-6012
NSN 6130-00-263-1827
NSN 5895-00-224-6955
NSN 5945-00-296-8464
NSN 6220-00-992-5889
NSN 5920-00-691-7727
NSN 5998-00-499-6051
NSN 2925-00-566-4522
NSN 5855-01-180-5369
NSN 5915-01-419-0628