Using this hand dryer is easy. Just place your hands under the dryer within the sensor zone, and it will start working automatically. It will dry your hands in less than 15 seconds. You can adjust the air speed and temperature according to your preference. If you don't need the heating function, you can turn it off. When you're done, simply remove your hands from the sensor area, and the dryer will turn off after a short time. As for maintenance, keep the dryer clean by wiping the stainless - steel cover regularly with a soft, dry cloth. Avoid using abrasive cleaners as they may scratch the surface. If you notice any issues with the operation, like a failure to start or abnormal noise, it's best to contact a professional for inspection.