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 5835-01-033-5185
NSN 5950-00-902-0355
NSN 5985-01-129-7883
NSN 6220-00-433-3519
NSN 5985-01-335-2452
NSN 6320-00-977-3930
NSN 6685-01-012-2854
NSN 6685-01-242-1030
NSN 5895-01-600-3452
NSN 5975-01-083-2397
NSN 5990-01-315-3754
NSN 6650-01-374-4923