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 6685-00-634-9964
NSN 6610-01-174-1622
NSN 7035-01-302-5359
NSN 5996-01-045-7004
NSN 5835-00-327-6192
NSN 6130-01-356-5606
NSN 2925-01-250-2731
NSN 5999-01-555-2971
NSN 5998-00-538-9479
NSN 6650-01-544-7205
NSN 6145-00-156-4394
NSN 5925-00-315-2238