The WASHLET sprays the ceramic with a fine mist of water. The reason: Less sticks to a moist ceramic surface than a dry one. After use, the toilet is sprayed with electrolysed processed water, also known as Ewater+. This water has an antibacterial effect. This antibacterial water thoroughly cleans the toilet. Regular water is electrolysed to give it a slightly acidic pH value. The Ewater+ is completely environmentally friendly and can be returned to the water cycle without worry.