الفهرس 
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Abstract
Evaporative coolers work well and efficiently moisturizing in dry and warm climates, this paper discusses the idea and theory work evaporative cooler, where he was redesign and implementation of direct/indirect .Evaporative cooler viable commercially and marketing unlike the previous Design who missed the geometric form acceptable. This system work in places with large cooling load such as (mosques , classrooms) as a result of opening and closing the doors on an ongoing basis.