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 5895-01-649-5812
NSN 6150-01-449-2073
NSN 5950-01-175-8397
NSN 5915-01-389-0025
NSN 6685-01-485-0604
NSN 5990-01-374-3877
NSN 6610-01-328-8098
NSN 6650-01-553-2805
NSN 4140-01-656-4224
NSN 6105-01-355-7409
NSN 6685-00-265-0912
NSN 5855-00-688-9954