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 4140-00-606-9453
NSN 6135-00-334-4500
NSN 6150-01-659-3115
NSN 6320-01-438-6280
NSN 6150-00-522-2504
NSN 4140-01-314-7365
NSN 5895-01-073-0467
NSN 6685-01-444-1496
NSN 5855-00-560-0110
NSN 6130-01-118-9978
NSN 6150-01-098-9317
NSN 5915-01-528-2523