... saving 3.esay install 4.new design&surface 5.high air flow,low noise XINGKE 3000M2 ... performance.2. High voltage mute sound type nylon fan blade, big air output,low-energy consumption,low ... protection, full-automatic water supply and drainage function.5. Automatic control water-supply system,open type water ... all times during operation and that the systems fan & motor are sized and designed to deliver ...