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 6240-00-185-8367
NSN 5960-01-212-8118
NSN 6110-01-106-5111
NSN 6105-01-297-4333
NSN 5920-01-223-3734
NSN 5925-01-609-3461
NSN 5965-01-182-5768
NSN 5996-00-862-5351
NSN 5925-00-228-1702
NSN 5975-01-612-9015
NSN 5985-01-403-2835
NSN 4140-01-541-5822