The ionator EXP uses tap water to clean. When this water circulates through the water cell, a slight electrical charge is applied. This charged water passes through an exchange membrane where the ionized water is separated into an oxygenated mixture of positively and negatively charged bubbles. When applied directly to a surface, the ionized water helps to break up and lift the dirt particles like a magnet. This process kills 99.9% of harmful bacteria, guaranteeing that treated surfaces are immaculately clean.