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 5985-00-823-4645
NSN 5910-00-647-1158
NSN 5985-00-928-3713
NSN 5855-00-079-2370
NSN 6105-00-564-4140
NSN 6620-01-285-0302
NSN 5960-01-425-1454
NSN 5920-01-183-3125
NSN 6135-00-583-3966
NSN 5965-01-479-5620
NSN 4140-01-589-5955
NSN 5996-01-601-5949