... water tank ,45L 4,environmental air cooling fan 5.With CE Moving air cooling fan for OFFICE 1, Parameter ModelXBL-65YDMax air flow ... , improve the air quality. 3,The advantages of Portable air cooler: FunctionVarious functions of filtering,ventilation, air circulating, cooling, odor- ... doors or ceiling ducts. 6,Where to use Siboly Air Cooler 1 For indoor using: home ,office,class,restaurant ,etc.2 ...