The UniLux 2020 is the most compact universal toilet on earth, which is able to fulfill all requirements of newest TSI-standards regarding ergonomics, hygiene and passengers safety at a minimal foot print. This toilet supremely suits the needs of people with reduced mobility. A modular structure allows different design configurations for different customer needs. Accessibility and maintenance have been optimized integrating all technical components inside the interior area. As a result, expensive insulation could be avoided. Grabpoles near the sidewall claddings can be used in twin function for water supply and water outlet.