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 2925-01-508-4138
NSN 6150-01-643-3865
NSN 6685-01-424-0315
NSN 6620-00-928-6053
NSN 5965-01-368-9994
NSN 5910-00-071-2049
NSN 6240-01-101-4413
NSN 6685-00-596-8765
NSN 5998-01-160-7869
NSN 5905-01-008-9272
NSN 5998-01-541-6281
NSN 6130-01-442-9963