An automated water vending machine, or water ATM, is a self-serve station that offers potable water. These devices, which are placed in public spaces, provide easy access to clean water, particularly in places with inadequate infrastructure. Customers can choose the amount of water they want to be dispensed into their containers while making a purchase using money, tokens, or digital currencies. Purification systems are frequently seen in water ATMs, guaranteeing that the water quality satisfies legal requirements. They are essential for encouraging hydration and decreasing the need for single-use plastic bottles, as well as supporting projects aimed at improving public health and sustainability.