The fan is Korean-made, its agent is Al-Madar. It has only been tested and not actually used. Blade size: 32 cm Airflow (max): 34–40 m3/min Air pressure (max): 30–38 mmAq Power: 200–290 watts Weight: 13 kg For your information, there is a slight external dent on the side, but it works perfectly. The price is reasonably negotiable.