Using this hand dryer is a breeze. Simply place your wet hands under the dryer, and it will quickly dry them. There's no need to touch it, so it's hygienic. When using, make sure the power supply is within the 110 - 240 volts range as specified. For maintenance, keep the dryer clean by wiping it with a soft, dry cloth regularly. Avoid using abrasive cleaners as they may damage the stainless - steel surface. If you notice any unusual noises or problems, turn off the power and contact customer service.