4-in-1 Air cooler, heater, air purifier and humidifier. Remote control and panel control. Active carbon filter. Germ-free cooling by rotating water curtain. Large anti-bacterial water tank. Generates negative ions to purify and sterilise output air. Hi-tech PTC heating element assures safer and rapid heating with two power options (1000/2000W). Two choices of airflow directions. Three selectable fan speeds. Up to 7.5 hour timer. Easy to operate and move around on castors. Model No. SAC41