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 5990-01-400-2195
NSN 6220-01-004-8909
NSN 5920-01-385-8648
NSN 4140-01-004-0566
NSN 6645-00-248-5434
NSN 5960-00-061-7383
NSN 5998-01-543-5882
NSN 7035-01-316-7860
NSN 5965-01-300-5607
NSN 6145-00-027-9852
NSN 5925-01-240-0576
NSN 6130-01-081-3412