Use AngelsH2O for your health. AngelsH2O destroys bacteria known to cause waterborne illness. For example, AngelsH2O is effective in fighting cholera, E. coli, and salmonella. AngelsH2O also prevents the growth of harmful algae in water, like Blue-green algae (also known as Cyanophyta). Cyanophyta will not only make people sick, but also causes taste and odor issues. AngelsH2O removes these organisms without creating toxic or cancer-causing compounds, as chlorine or oxidation treatment can.