... Air Cooler is mainly used to lower the temperature in outdoor occations, such as open squre, playground, walk streets, bus stations ... , airport, stadiums, outdoor restaurants, villa gardens and etc.2.Technical Data Model No ... (A) Effective Area(m2)Use Time of Full Water(h) WT-4C220-230V/50Hz 0.32 1400 2450 ≤67 112 inflow ...