The description states that this unit is for a small room but I can attest it will adequately cool a room of larger proportions. I live in Arizona and the room I installed this unit in is 15' x 20' and it does a super job. I love the eco feature, set the temp you want , the fan speed and it does the rest while keeping the electric use down. I am able to close off this room and as a result am able to keep my HVAC system set @ a higher setting so I don't run my electric bill through the roof, believe me in triple digit temps that we have had so far this early into summer, this little unit is a godsend. For a quality unit with established name recognition, and a very affordable price, I highly recommend.