(真正的造福人类的发明！在一年仅2吋雨量的地方，从空气中制水！）

This is nothing less than a revolution— - generation of water from nothing but thin air (and of course the most innovative advertising technique ever!). UTECH designed a billboard that can convert atmospheric humidity into drinking water through reverse osmosis in Lima, Peru where water shortage is one of the biggest problems. Peru only gets 2 inches of rainfall every year but has an extraordinarily high humidity, which is how this technological trick led to happy faces filling buckets of water and showering under the water dispenser below the billboard!