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 6145-01-104-5084
NSN 5905-01-228-9036
NSN 5996-00-277-7384
NSN 6130-01-555-8062
NSN 5925-00-498-5029
NSN 6685-00-225-8571
NSN 4140-01-064-6474
NSN 6645-01-363-9790
NSN 5895-00-426-7616
NSN 6220-00-643-4045
NSN 6685-01-410-3456
NSN 4140-01-154-1041