... sporting events, Greenhouses, Shop areas, Assembly areas. Evaporative cooling systems offer a low-cost alternative to air conditioning. Easy ... ,rain and sun .Feature2.multifuction ,can be used as cooling fan, humidification ,ventilation fan3.environmental ,no pollution ,water evaporation ... A.Completely machine:one yearB.Motor and fan blade:two years C.Cooling pads:three years D.Body case:eight ...