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 6620-00-273-8735
NSN 6685-01-209-4319
NSN 5855-01-391-7077
NSN 6135-01-305-6958
NSN 6130-01-521-7533
NSN 6685-01-623-3467
NSN 5998-01-270-9966
NSN 6650-01-579-7240
NSN 6150-00-723-4618
NSN 6620-01-224-9007
NSN 5930-01-619-3987
NSN 5945-00-597-5722