This portable air cooler fan is perfect for keeping you cool during hot summer days. Equipped with 3 cool speeds, this air cooler is powered by a USB and uses HC-12a refrigerant to keep you cool. Made of ABS and electronic components, this air cooler has a cooling system that is direct and uses air for cooling. It is 26 inches long and has a one-way air direction. This portable air conditioner has a push-button control style and features a humidifier. It can cover an area of 301-350 sq ft and has an energy efficiency rating of A+++. With a mounting location of either baseboard or desk/tabletop, this air cooler has a power of 1000 W or less. The voltage is 12 V and the air flow volume is 251-400 CCM.