Using this hand dryer is a breeze. Just place your hands inside, and the automatic sensor will start the drying process. It'll dry your hands in about 38 seconds. When it comes to installation, since it's surface - mounted, you can use the four 5/16 in. holes on the single - inlet centrifugal scroll fan to attach it to the wall. As for maintenance, there's not much to worry about because of the durable, maintenance - free shaded pole motor. But keep an eye on the self - resetting thermal cut - offs. If the dryer shuts off due to overheating, it'll reset itself once it cools down. Avoid using abrasive cleaners on the white epoxy finish to keep it looking good. And remember, this hand dryer is not ADA compliant, so make sure it's used in appropriate locations.