... wind speed 3)20L water tank 4)fresh and humidify air ,large air flow 5)move convenience Products description:In open room (summer ... ,durable and reliable;Turbo fan for strong air flow with low noisePurify air by generating anion;Three air-flow modes of Natural ,Sleep ,Normal;Very ... .W.28 kgLOADING QUANTITY(20/40GP/40HQ)pcs99*200*237 air cooler(CE,CB,GS)