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 6320-01-021-6633
NSN 5990-00-277-3763
NSN 5965-01-290-0535
NSN 6610-00-913-7069
NSN 5925-01-549-7714
NSN 6145-01-227-4662
NSN 5960-01-589-6846
NSN 5998-01-087-4398
NSN 5985-01-356-1622
NSN 5835-01-564-4727
NSN 6620-01-147-5615
NSN 6135-01-482-7901