POWER VOLT Through the other hole, air enters in the machine where it is cleaned thanks to the filter system. Some of this air is cooled and blown into your room while the unclean bit of it returns out through the other hole. (LIMITED STOCK) Click Here to Order Powervolt From The Official Website Now Setup is easy. Here are some steps youd have to follow: Pour water in the tank Adjust the replaceable water curtain which is durable enough it lasts for 6 to 8 months Turn on the air conditioner When the product needs charging, the device will alert you and it will also alert you when the device is fully charged. This indication is given by means of the LED ring of the portable machine. Please note some features of the product and its working may differ depending on which model you choose.