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 6685-00-825-0305
NSN 6620-01-612-9030
NSN 6240-00-239-8295
NSN 5910-00-341-2827
NSN 5835-01-049-5290
NSN 6610-01-059-5271
NSN 5998-01-541-1626
NSN 4140-01-317-3560
NSN 5855-01-308-0955
NSN 6650-00-140-8776
NSN 6685-01-444-5991
NSN 6150-00-156-6080