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 6320-00-994-0179
NSN 5965-01-581-2164
NSN 6610-01-083-1446
NSN 6320-01-106-4414
NSN 6145-01-258-1840
NSN 5855-00-318-7185
NSN 5975-00-272-2913
NSN 5998-00-417-3361
NSN 6645-01-163-9930
NSN 5930-01-493-9130
NSN 5985-00-368-7198
NSN 5960-01-399-2583