12" Industrial Ventilation Extractor Metal Axial Exhaust Air Blower Fan ABS Descriptions: 100 % Copper Motor High-performance condenser motor Made of strong ABS material High air suction Carrying hot melt power off, safer to use Turbine centrifugal air movement, high air volume Low score, good noise reduction High quality motor with high power conversion rate Long operating life Specifications: 12 Inches ( 300mm) Opening size:390mm*390mm panel size 390mm Wattage 40W Airflow : 1000 (m3/h) Noise 47 (Db) Voltage 220v- 240v Rating IPX2 Gross Weight 1.8Kg package size：395*140*400mm.