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 6685-00-760-5235
NSN 5999-00-147-4439
NSN 5935-01-325-3452
NSN 5930-01-348-8962
NSN 5855-00-494-9581
NSN 4140-00-647-1142
NSN 6620-01-284-1145
NSN 5835-01-632-6627
NSN 6240-00-304-7015
NSN 6240-01-609-2710
NSN 5990-01-271-1628
NSN 6620-00-646-9474