The METASYS H1 Hygiene System is a fully automatic cleaning and disinfecting system which continuously supplies the suction system with GREEN&CLEAN H1 - an agent which has been specially developed for this application - throughout the treatment. The disinfecting effect extends from the head of the suction hose to the amalgam separator. The infection risk at the mouthpiece is drastically reduced during treatment, and it is no longer necessary to disinfect the vacuum system manually everyday. The system is maintenance-free - only the disinfectant needs to be refilled once a week. THE BENEFITS OF THE H1 HYGIENE SYSTEM ARE COMPELLING: continuous cleaning, disinfecting and defoaming of the entire suction system (including suction cannulae) additional manual disinfecting of the suction system is no longer necessary movable rack for suction hoses integrated prefilter built-in suction flow regulator integrated control panel for the hygiene system and amalgam separator suction hose selection through infrared photo cells