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 5998-00-633-5169
NSN 6685-00-037-9635
NSN 6220-01-182-4874
NSN 6240-00-407-1024
NSN 6645-01-126-7743
NSN 5975-01-334-9847
NSN 5950-01-354-8451
NSN 6130-00-537-1903
NSN 6650-00-618-9398
NSN 5996-01-233-6490
NSN 5930-01-598-9373
NSN 6110-01-102-1425