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 5999-01-389-3089
NSN 5905-01-178-0909
NSN 2925-01-107-7939
NSN 5999-01-410-8774
NSN 5895-01-406-3053
NSN 6620-01-488-9547
NSN 5835-01-490-9751
NSN 6320-01-067-0474
NSN 6645-01-585-0018
NSN 5985-01-497-4587
NSN 6685-00-462-8494
NSN 5975-01-570-6965