Whynter is going GREEN! With this new Eco-friendly CFC free, lead free and high enery efficiency portable air conditioner, you can stay cool while keeping with better environmental standards and reducing energy consumption. This GREEN portable air conditioner is extremely mobile and can be easily setup in almost any indoor location and are most commonly used in computer / server rooms, bedrooms, classrooms and garages / workshops. This Whynter GREEN ARC-12S portable air conditioner features the ECO-FRIENDLY CFC free GREEN R-410A refrigerant and lead free RoHS compliant components. This unit features the patented auto drain technology, which uses and recycles moisture collected during the cooling process to produce cool air. This unit can cool up to a 400 sq. ft. space (ambient temperature and humidity may influence optimum performance).