Hii friends , I am telling you about SYMPHONY HiCool . Every person need cooling in this hot summer. I bought this cooler in the starting of this summer. The cooling is done only in the nights. It does not cool the room during day, when their is very indeed of cooling. I think you should take the demo before bought this type of cooler because this type of cooler looks of very good quality but the system does not work in many conditions.