This single glass water still produces pure distilled water and pyrogen-free distillates automatically. With its fully automated operation and safety protection, this unit also offers optional water softner to prevent scale fomration. Its heaters are sheathed with borosillicate glassware and silica. It is very easy to use, maintenance-free and safe to operate with indicators such as distilling indicator, and with safety cut-off features such as overheat protection, water level and low water pressure.