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 6220-01-578-7084
NSN 6145-01-022-5652
NSN 6105-01-480-3734
NSN 5915-01-094-8852
NSN 4140-01-444-4464
NSN 5920-00-421-7546
NSN 5950-00-491-6341
NSN 5990-01-134-7756
NSN 6320-01-271-0247
NSN 5990-01-004-6343
NSN 5998-00-157-4009
NSN 4140-01-037-9792