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 6610-00-998-8764
NSN 6220-01-435-4839
NSN 5975-01-386-2281
NSN 5835-00-763-2938
NSN 7035-01-149-7502
NSN 6610-01-058-2366
NSN 6105-01-272-3189
NSN 6650-01-230-5155
NSN 5835-01-416-6449
NSN 5998-01-142-3072
NSN 5855-01-383-6860
NSN 5920-01-218-1733