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 5945-00-105-5537
NSN 6145-00-470-1606
NSN 5905-01-519-5594
NSN 6685-00-057-2777
NSN 6685-01-024-9508
NSN 6150-01-032-5026
NSN 6105-01-198-9724
NSN 7035-01-391-7470
NSN 5925-01-435-7926
NSN 5930-01-093-1525
NSN 2925-01-459-8093
NSN 6650-01-491-2008