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 4140-01-282-6748
NSN 5895-01-352-5695
NSN 5996-00-933-1590
NSN 6645-01-343-6077
NSN 6620-01-534-7180
NSN 5960-01-415-3574
NSN 5998-01-611-7142
NSN 6240-00-393-1161
NSN 5925-01-085-8163
NSN 6645-01-166-1891
NSN 6320-00-036-3688
NSN 5935-01-111-9490