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 6220-01-344-9707
NSN 5999-01-463-8277
NSN 5905-00-734-6386
NSN 6610-00-628-6742
NSN 6110-01-043-3079
NSN 6645-00-189-7075
NSN 5925-01-026-5845
NSN 5985-01-172-7344
NSN 6620-00-474-5165
NSN 6145-01-299-2941
NSN 6130-00-371-8337
NSN 5998-00-214-0251