蒸发冷却的过程已经被用来改善舒适条件很多世纪了。它仍然是将高干球温度降低到更舒适范围的最便宜技术之一。蒸发过程为被处理的空气添加水分。

The process of evaporative cooling has been used to improve comfort conditions for many centuries. It remains one of the least expensive techniques for bringing high dry bulb temperatures down to a more comfortable range.The evaporative process adds moisture to the air being treated.