Using this hand dryer is super easy. Just place your hands under the dryer, and the infrared sensor will detect them and start the drying process. The dryer will automatically shut off after 60 seconds, so you don't have to worry about leaving it on. When mounting, use the four 5/16 - inch holes on the 1/8 - inch thick aluminum base plate to attach it to the wall. Make sure to use the special key wrench to lock the cover properly with the vandal - proof lock screws. For maintenance, keep the polycarbonate viewing windows clean. Check the safety thermal cut - off regularly to ensure it's working. And if you notice any mechanical vibrations, the silent blocking should help, but if it persists, it might need further inspection. Always use the appropriate voltage (100 - 120V, 208V, or 220 - 240V) for safe operation.