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 6135-01-577-5532
NSN 6240-01-295-5159
NSN 5925-01-085-5767
NSN 6320-00-857-4073
NSN 5998-00-728-3637
NSN 6320-01-054-3046
NSN 5855-00-118-8762
NSN 2925-00-478-3742
NSN 5915-01-514-6782
NSN 6240-01-069-2688
NSN 5920-01-451-4260
NSN 5835-00-958-6231