Automatic Hand Wash dispenser to start with, make sure there is no cross-contamination in your bathroom. You'd be surprised how people can touch dirty objects in the bathroom and not worry when they go to turn on a faucet or handle a bar of soap. People often don't bother to look closely at their habits to see what they're doing. Using a manual soap dispenser is obviously an option, if not a better option than a dispenser. The automation releases a programmed drop of soap or foam when they detect, through a proximity sensor, the presence of a hand nearby. With a manual soap dispenser, while things may not get as messy as they would from handling bars of soap, there is still a risk of contamination when someone doesn't touch the button with a dirty hand.