“Clean Synergy” is how we describe the interplay of special hygiene technologies: WATER+, PREMIST, TORNADO FLUSH, CEFIONTECT and rimless design are technologies with completely unique impacts. Together, these features have a truly unique impact. In combination with WASHLET™ and the corresponding TOTO toilet, for example, they ensure maximum hygiene - giving people the confidence that WASHLET™ is perfectly clean with every use.