Automatic disinfection of water circuits The BIOSTER system is an automatic spray water circuit disinfection device that carries out the customary end-of-work disinfection tasks. Control is user-friendly and takes place via the new Touch instrument control panel; dentists can set cycle times, from 5 to 30 minutes, and monitor the disinfection process. Programmed disinfection The automatic control system manages the following cycle phases: Emptying of water in conduits and introduction of compressed air Withdrawal of disinfectant from tank and its introduction into the spray water circuits Liquid remains in the conduits for the indicated time Liquid is forced out by compressed air Flushing with water (mains or distilled).