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 6610-01-607-8892
NSN 5895-01-620-3700
NSN 5925-00-948-9113
NSN 6110-01-549-1386
NSN 6610-01-553-4749
NSN 6240-01-218-5187
NSN 5920-00-398-0766
NSN 6240-00-932-1331
NSN 5895-00-127-2560
NSN 5975-01-041-3934
NSN 5996-01-339-2430
NSN 5855-01-600-1681