Full20 is a non-numerical hand washing timer concept inspired by research on proper hand hygiene during the pandemic. Full20 utilizes simple existing technology (LEDs that change the color of your faucet’s water), and uses it as a timer for the correct amount of time you should be washing your hands for, 20 seconds. To further appeal to the children who would be using this product, a small shape projector will cast colorful shapes into the sink when the product is activated. The LED lights and projector are activated by the flow of the water through the device. As soon as the lights turn on, they will remain on for a full 20 seconds no matter if the water is running or not.