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 5975-00-952-0021
NSN 5998-01-634-0604
NSN 5990-00-124-2556
NSN 5996-01-127-3381
NSN 5920-01-442-6756
NSN 5945-00-206-0758
NSN 4140-00-067-4798
NSN 6150-01-224-7183
NSN 6610-01-555-0842
NSN 5996-00-421-8429
NSN 5960-01-320-7675
NSN 5925-00-845-3430