Parameter Voltage 120V, 220-240V Frequency 50 /60Hz Rated Input Power 1500W Max Power 1600WMax Vacuum ≥27 KPa≥110in H2OMax Air Flow ≥48L/s≥101.8CFM Max Air Power ≥590W Max Efficiency ≥45% *Orifice in inch is only approximative. Performance data above are for reference only. Individual performance data may vary due to normal manufacturing variations. You are welcome to give us any of your special requests.