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 5935-01-075-6954
NSN 4140-01-143-2523
NSN 5950-01-411-5950
NSN 5960-01-345-9800
NSN 6620-01-632-2154
NSN 6645-01-076-4655
NSN 5950-00-092-2140
NSN 5960-00-822-9519
NSN 5835-00-540-9669
NSN 5905-00-432-9476
NSN 5915-00-581-2651
NSN 6240-01-298-8478