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 5930-01-487-4698
NSN 6150-00-158-4609
NSN 6135-00-812-9039
NSN 5975-00-247-9670
NSN 5985-01-509-7597
NSN 6135-00-577-8429
NSN 5910-01-157-9362
NSN 6130-01-487-3758
NSN 6145-01-428-4071
NSN 4140-01-338-2154
NSN 5930-01-158-5694
NSN 5930-01-474-5927