Based on the water system, which uses chlorine sterilization in America and Asia, CW-2010 is the first-ever shower head featured with fluid-driving to generate the electricity, removing the residual chlorine in water through electrolysis and improving the water quality with green energy. CW-2010 would remove the hypochlorous acid and hypochlorite through electrolysis by water flow. Fast electrochemical reactions effectively diminish the second pollution in domestic condition without consumption of filters.