1.1KW down discharge best window water small evaporative cooler for saleDescription of AUVC water evaporative coolerNature’s most efficient means of cooling is ... It is called desert cooler in Middle East, and also is called swamp cooler in US. The Frame of evaporative cooler is very simple. ... . Easy to set up in the wall, window and roof, not only provide cooling, but also provide good ventilation. ...