Eliminates visible emissions (99.97% efficient for 0.3 micron oil mist), High performance replaceable coalescing elements offer long life, Flow ranges from 20-175 CFM (34 - 297 m3/h), Vacuum level control valve for precise vacuum regulation, Integrated vacuum relief valve for motor protection, Drain port for oil recovery , Pressure differential taps, Motors for both Standard EU and North American Voltages, Rugged carbon steel construction , Industrial grade powder coat finish