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 5975-01-480-2817
NSN 5950-01-469-5974
NSN 6220-01-123-9290
NSN 5915-00-259-3772
NSN 5985-00-067-3324
NSN 6240-01-612-8756
NSN 4140-01-158-9515
NSN 6240-01-512-1856
NSN 5998-01-448-2591
NSN 6220-00-186-8565
NSN 5915-01-179-0674
NSN 5910-01-332-7991