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 5965-00-303-9701
NSN 2925-01-518-3453
NSN 5915-00-458-9356
NSN 5960-01-499-3544
NSN 5960-01-654-4353
NSN 5999-01-517-4054
NSN 5915-01-444-2198
NSN 4140-00-274-9638
NSN 5835-01-368-4015
NSN 5990-01-390-2177
NSN 6645-00-767-6307
NSN 5965-01-142-8044