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 5998-01-504-2634
NSN 5945-01-614-1713
NSN 6110-00-181-5634
NSN 6130-01-438-9816
NSN 6610-01-033-2402
NSN 6645-00-296-8310
NSN 7035-00-402-9426
NSN 6620-01-081-1042
NSN 5996-01-130-6504
NSN 6320-01-378-6191
NSN 5950-00-959-0096
NSN 6685-01-032-3384