3-in-1 COOLING – cooler humidifies, purifies and chills the air using evaporative technology. Best for hot dry climates EASY TO SET UP AND USE – simply add water then plug into power supply, computer or power bank to get started! Cools the area in front of the device, approximately the size of a desk, couch or bed PORTABLE – personal air conditioner sits conveniently on any desk and is easy to transport around LOW ENERGY CONSUMPTION – air cooler consumes only 10W of electricity; Water tank capacity 750 ml water refill cycle 6-8 hours, cooling power up to 350-Watt (1200 BTU/hour)