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 5835-00-221-6628
NSN 4140-01-510-9844
NSN 6650-01-484-9505
NSN 5975-01-529-0683
NSN 6620-00-905-6590
NSN 5835-01-502-9228
NSN 5835-01-338-5176
NSN 6240-01-523-2835
NSN 5925-01-449-2188
NSN 5855-00-455-6070
NSN 6320-00-699-1091
NSN 7035-01-441-4174