Say goodbye to hot and sweaty days with this 3-in-1 evaporative air cooler! Without the need for complicated installation, this windowless portable air cooler with 60W rated power is convenient and energy-saving in daily use. With a generous water tank capacity of 2.8L, you can enjoy long-lasting cooling without frequent refilling. And the upper water tank is friendly to the elderly and pregnant women to fill water. Equipped with 2 ice crystal boxes, the air cooler provides an extra burst of coolness. Besides, you can choose from 3 different modes - normal, natural, and sleep. 90° vertical oscillation and 60° horizontal oscillation make the cool air flow reach every corner of the room. What's more, 3 fan speeds and 0-12h timer can be customized easily through the handy remote control or LED touch control panel.