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 5950-01-152-2341
NSN 6620-01-360-1571
NSN 6145-01-090-1086
NSN 6620-00-375-0393
NSN 5935-01-328-2577
NSN 6240-01-034-9457
NSN 6645-00-078-5126
NSN 5935-00-362-3873
NSN 5835-01-342-7975
NSN 6650-01-144-8436
NSN 7035-01-088-5575
NSN 6220-01-414-3876