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 5905-01-202-8489
NSN 6645-01-464-8192
NSN 6145-01-414-5011
NSN 5999-00-257-3566
NSN 6645-01-428-3576
NSN 6320-01-429-9871
NSN 5975-01-096-9614
NSN 2925-01-004-5627
NSN 5998-01-203-6008
NSN 6240-01-009-8729
NSN 6130-00-716-0770
NSN 5999-00-505-2039