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 6645-01-258-5558
NSN 5895-01-336-6171
NSN 5998-01-250-2793
NSN 5895-01-088-6678
NSN 6145-01-058-7193
NSN 5960-01-023-6618
NSN 6135-01-369-0939
NSN 6110-01-535-0995
NSN 5998-01-381-6724
NSN 5996-01-220-8021
NSN 5910-00-694-6211
NSN 6110-01-380-9800