The KuulAire Portable Evaporative Cooling Unit is one of the most efficient and environment friendly ways to keep chilled indoors. The heart of an evaporative cooling system is the evaporative pad. A pump on this KuulAire evaporative cooler in silver pushes water over the pads and a fan pulls the air through them. The water evaporates within the pads and the air passing through the pads is cooled. This indoor evaporative cooler features a LED control panel with three modes: normal, natural and sleep and a small footprint at 25 tall, making it perfect for keeping small spaces chilled. It is extremely powerful at 250-CFM and cools with no harmful refrigerants. The KuulAire Portable Evaporative Cooling Unit is easy to use and maintain, and you can use it in conjunction with an A/C to boost the cooling. This unit is lightweight, portable, includes casters for easy mobility and a remote control.