S1 Sub-boiling Acid Purifier adopts classic sub-boiling distillation approach and works to achieve a dynamically delicate balance between automatic control of heat convection and acid vaporization. The instrument control is designed to enable intelligent operating and handling of any task, making even an unmanned acid purification session possible in the fume hood. The device is constructed with absolutely zero quartz or metal parts, entirely eliminating the occurrence of corrosion and outside contamination from happening.