Whynter is going GREEN! With this new Eco-friendly CFC free, lead free and high energy efficiency portable air conditioner, you can stay cool while keeping with better environmental standards and reducing energy consumption. This Whynter GREEN ARC-14S portable air conditioner features the ECO-FRIENDLY CFC free GREEN R-32 refrigerant and RoHS compliant components. This unit features the patented advance auto drain technology, which uses and recycles moisture collected during the cooling process to produce cool air. The dual hose operation provides fast cooling. This unit can cool up to a 500 sq. ft. space (ambient temperature and humidity may influence optimum performance). Comes with a protective cover with pocket that will protect your portable AC unit plus store your exhaust hose, window kit, remote control and user manual when not in use. This protective cover will keep dust and dirt from collecting on the unit while it is in storage.The air conditioner should be placed on a hard and level surface strong enough to support its weight. The unit is equipped with caster wheels for portability. It should only be rolled on smooth, flat surfaces. Use caution when rolling on carpet surfaces. Do not attempt to roll the unit over objects