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 5855-01-448-8159
NSN 5835-00-644-4512
NSN 6320-00-331-7138
NSN 5975-01-211-6594
NSN 5920-01-217-2471
NSN 6105-01-160-0427
NSN 5960-01-528-1147
NSN 6220-00-900-7595
NSN 6110-00-862-9137
NSN 5945-01-264-5413
NSN 5975-01-504-1390
NSN 6685-01-650-1241