box is also available. In the ice box you fill ice cubes and in return you can get ice-cold air. The ice cubes also melt and are used as cool water. In combination with the Polar Chill Portable AC this option is doubly advantageous. As with almost all mini air coolers, the Polar Chill Portable AC does not need to replace the water, it only needs to be refilled. The air conditioner releases the water back into the ambient air in the form of very fine water droplets. As a result, the air humidity can also rise with little effort. In addition, the distribution of the water should be so small that neither the pillow nor the blanket show traces of moisture after sleeping. Charging via USB cable is also practical. This form of energy supply is certainly familiar to you from numerous devices in your household. So it doesn't take long until the Polar Chill Portable AC gets used to a certain routine. The manufacturer states the volume during operation at a value of slightly less than 40 decibels. This is not perceived as noise by your