TriO is a small appliance that reduces water consumption for washing by producing and using ozone. This is more effective than other sanitizing substances and allows the reuse of water. All the phases of a common washing (which is always imprecise, long and wasteful) are automated, reducing the attention required for its implementation. The research focused on ozone, a molecule with a very high oxidizing power that destroys microorganisms and pesticides. Mixing in water allows the substance to decompose rapidly while maintaining the oxidizing effect, sanitizing food quickly and reducing the liters needed to ensure more effective washing than traditional washing. The product is aimed at adults of any age and gender. It is intended for all users who have a particular clinical situation, such as pregnant women, the elderly and the sick. In addition to benefiting the user's health, it generates long-term economic savings due to less use of purchased goods and water used for washing.