Specification Operating Voltage 110V/60Hz or 220V/50Hz Current Consumption 0.25A or 0.12A Operation Temperature 0~50°C Size 90mm(L)*170mm(W)*260mm(H) Weight 3Kg Air Volume 45~110CFM Offset Voltage 0V±10V Air Coverage 40cm*60cm Decay Test Results Decay Test Results Testing Conditions Testing Voltage 1KV to 100V Operating Voltage 110/220V Temperature 22°C Distance 300mm 600mm 900mm Decay time Positive(+) 1.0s 3.4s 7s Negative(-) 0.9s 3.5s 8s Offset voltage Positive(+) 2V 1V 4V Negative(-) 2V 1V 3V