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 6320-00-242-3300
NSN 5975-00-840-5844
NSN 5996-00-098-3864
NSN 5915-01-092-6838
NSN 5985-01-600-9950
NSN 5996-01-514-9292
NSN 5855-00-560-0110
NSN 5905-01-123-9715
NSN 5999-01-396-5411
NSN 5975-01-351-3930
NSN 5920-00-913-0475
NSN 5975-01-546-7842