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 5998-01-474-5902
NSN 5975-01-360-5067
NSN 6105-01-518-8943
NSN 5960-01-386-3855
NSN 5910-01-097-9315
NSN 5990-00-263-1289
NSN 6150-01-064-8388
NSN 5996-01-232-0067
NSN 5905-00-992-5347
NSN 6610-00-371-5953
NSN 6240-01-540-2749
NSN 5996-00-577-0483