Mitsubishi proves best that its a japenes best designed product for daily use accessory. This air conditioner produces no noise. Its give very good cooling and even consumes less electricity so it is not dangerous and heavy for the pocket. Its size isaksovery slim and competible for a average room and cool it in less time. I used it since 2 years effectively. I have not any complain about the working of thid product.i suggest you to use this product to every body.its is a very valuable product.