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 5935-00-551-8473
NSN 5920-01-655-7675
NSN 6130-00-576-4867
NSN 5975-00-300-3206
NSN 6105-01-104-5214
NSN 6620-01-328-1455
NSN 5910-00-679-9472
NSN 5895-01-057-2925
NSN 5930-01-054-1441
NSN 6135-01-497-4516
NSN 5990-01-101-7602
NSN 2925-01-299-6967