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 6150-00-617-1989
NSN 6320-00-402-6493
NSN 5935-00-232-5553
NSN 6105-01-625-9519
NSN 2925-01-574-0273
NSN 6130-01-541-0944
NSN 6150-01-069-3174
NSN 6220-01-426-5579
NSN 5985-00-154-0151
NSN 6620-01-123-6663
NSN 6145-01-025-6514
NSN 6135-01-222-0703