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 5835-00-912-5656
NSN 5855-00-922-6459
NSN 6610-01-375-1527
NSN 6685-00-159-8954
NSN 5925-01-307-0693
NSN 6105-01-235-5254
NSN 6150-00-233-6356
NSN 6320-01-304-3639
NSN 5975-00-852-9046
NSN 5998-01-563-4159
NSN 6645-00-960-6594
NSN 6130-00-598-2034