This high performance powerful portable ventilator fan has been specifically designed for use in automotive commercial industrial and agricultural environments. Stale air is rapidly extracted to provide a cleaner more pleasant working environment. Completing this ventilator is a sturdy build to ensure long term reliability. This product includes the ventilator only the orange PVC ducting shown in image is sold seperately. Fan Diameter. 12" (300mm). Air flow 3900m3/h (at optimum efficiency). Rubber feet provide stability and reduce vibration. Carry handle. Motor: 230V 50Hz 392W.