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 6685-01-464-4272
NSN 5905-01-496-2698
NSN 5990-00-140-4559
NSN 5975-00-583-8625
NSN 5990-01-218-5160
NSN 6650-01-366-7811
NSN 5950-01-109-7584
NSN 5855-00-532-0025
NSN 6220-01-608-6150
NSN 5990-00-918-3876
NSN 6105-00-347-0763
NSN 6645-01-590-0788