1. Full copper motor 2. Using CAD optimization design ,stable and durable operation 3. Overheat protection 4. With 3pcs metal blades 5. Full metal casing 6. With handle and Non-slip feet and castors , more safe for using and moving 7. Free standing & portable type 8. Low noise and high air quantity 9. Knob control, adjustable 3 speed settings 10. Strong and long lasting construction ,suitable for the industrial and mining enterprises, workshops, warehouses and other places for heat prevention and cooling, ventilation 11.220-240V~ 50Hz，120W
