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 5910-00-738-6556
NSN 6645-01-137-7974
NSN 5985-01-014-6492
NSN 4140-01-114-9097
NSN 5835-01-013-9321
NSN 5855-01-523-1177
NSN 5835-01-390-4667
NSN 6685-01-592-1291
NSN 6610-01-336-2787
NSN 4140-00-451-6132
NSN 4140-00-318-0159
NSN 5910-00-298-1833