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 5945-00-274-4204
NSN 6685-01-315-1860
NSN 7035-01-102-2386
NSN 5950-00-910-4621
NSN 6240-00-889-6753
NSN 5930-01-303-3058
NSN 5950-01-106-3533
NSN 6145-01-204-4265
NSN 5935-01-394-6053
NSN 5930-01-535-6211
NSN 5975-00-782-1757
NSN 5835-00-998-5757