Phoenix Manufacturing Commercial Coolers deliver the industry optimum fresh air with motor horsepower ranges from ¾ Hp to 7 ½ Hp to meet the most challenging design requirements. Often referred to as air washers, these units also provide filtering to induction air prior to entering workplace environments through ducts or single inlet discharge aperture. Similarly, used as air handlers without the use of water, fresh make-up air requirements in restaurant kitchens, industrial work environments and dry cleaning industries can be met cost effectively and energy efficiently.Use this link to properly size your evaporative cooler:http://www.evapcool.com/calculators/evaporative-cooling-sizing-calculat…