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 5975-01-347-4385
NSN 5920-01-106-1137
NSN 4140-00-688-7522
NSN 6645-01-361-8947
NSN 5985-00-331-4761
NSN 6620-01-545-4845
NSN 5930-00-809-0456
NSN 5835-00-231-9544
NSN 5985-01-478-9112
NSN 5996-00-244-5857
NSN 5950-01-183-3795
NSN 5990-01-571-7468