Hermes CO2 Bubbler,In view of the electrostatic effect of high impedance of ultrapure water, the resistance value is constantly controlled within a very precise range, even in the face of instantaneous high water flow changes, it can quickly and automatically adjust; in addition, the high Modular design, in addition to easy maintenance, there is no additional cost caused by consumables (this machine has passed the German Rhein TUV SEMI S2 safety certification).