... air directly. Have 2 UV light Ozone Sterilization system water could drink in a month Voltage/Frequency:AC220V/50Hz ... valid capacity:7LBottom tank valid capacity:2.2LHot water temperature:88~92°CCold water temperature:5~10°C Ambient humidity:70%Max ... →without resort to any source→Four function together: water-making from air, purified water, heating, cooling. compact-design, easy-operation→Controlled ...