Product specification -Size (BTU): 17900 -For room size (sqm): 20-28 -INVERTER system: Yes -Specify BTU range: 4500-19200 -Saving fiber 5 (stars): 5 -Temperature regulation while sleeping: Yes -Humidity control system: Yes -Cooling system: Yes -ECO MODE: Yes -AUTO RESTART: Yes -Set the opening time (hours): Yes -Swing up and down system: Yes -Left-right swing system: Yes -Other: Super cooling capacity in high temperature -Anti Mildew Running -5 level fan speed -Long distance air flow -3 years on site service