This Whynter GREEN ARC-12S portable air conditioner features the more eco-friendly CFC free GREEN R-410A refrigerant and lead free RoHS compliant components. This particular air conditioning unit features the advance self-evaporating technology, which uses and recycles moisture collected during cooling and heating process to produce cool air. This unit can cool up to a 400 sq. ft. space, so it might be good for you if you live in a small apartment.