Power Volt The Power Volt Cooler produces a maximum volume of 40 dB. For this reason, the device does not have any disturbing effect. It can be used in the bedroom and office without any problems. According to the manufacturer, the volume is much higher with a fan or large air conditioning systems. Does the Power Volt have an evaporator? No, the device works on the evaporation principle. The air flowing past absorbs the moisture in mobile versions and can thus cool down a room in a targeted manner. The temperature can be reduced by a few degrees. The performance of the device always depends on the humidity on site. The more your room is already saturated with moisture, the weaker the cooling effect. You should therefore use the unit with an open window. Make sure that it has a straight surface to stand on. Where can you buy the Power Volt Cooler? You should only purchase the cooling unit directly from the manufacturer. This way you can be sure to get a discount and all warranty services. In addition, you often run the risk of not being sent the original appliance via foreign online shops.