These air driven blowers are engineered specifically for hazardous work environments where intrinsically safe equipment is absolutely required. The anti-static, glass-reinforced ABS (Acrylonitrile Butadiene Styrene copolymer) housing is corrosion and chemical resistant. Complete with filter, motor lubricator, exhaust muffler, air control valve and static grounding cord. Motor exhausts outside of duct; compressed air not in air stream.