The advanced MDN2000 fan is specially designed for easy use by one person. With an built-in regulator, this fan not only provides low energy consumption but also whisper-quiet operation. The installation is incredibly easy due to the convenient plug & play design. With the four pneumatic wheels, you can easily maneuver it on any terrain, making it highly flexible and easy to move around. In short, a powerful machine that is effective in cooling both indoor and outdoor environments.