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 7035-01-483-1776
NSN 6240-01-505-0030
NSN 5835-01-173-8003
NSN 5920-00-229-5236
NSN 5925-00-332-0018
NSN 5998-01-050-6763
NSN 6220-01-075-2438
NSN 5985-01-606-3857
NSN 5985-01-584-8362
NSN 6645-01-205-3869
NSN 6105-00-061-3429
NSN 5915-01-558-7552