| http://www.w3.org/ns/prov#value | - A multi-stage evaporative cooling system for providing cool air to a structure, comprising: an outer cooling unit and an inner cooling unit, each unit including a shell and a plurality of removable panels, forming a vapor space in between the outer cooling unit and the inner cooling unit; and a water source; wherein the outer cooling unit further comprises at least one exhaust fan located in the t
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