The focus of Echo Water Machines is and has always been on molecular hydrogen, which is supported by over 750 scientific studies. Echo’s proprietary hydrogen module is vastly different than any other hydrogen-producing module in the world. In this patented module, the electrodes are not in contact with the water you are drinking. This means that the metal of the electrodes is not in the water. In the module, hydrogen gas is produced then dissolved in a 2nd stream of hydrogen water. Echo Hydrogen Machines were designed from the ground up to make hydrogen water as the primary purpose, not a by-product of producing alkaline water. Hydrogen water is made without changing the pH of the source water. Because the cathode in Echo’s hydrogen module is not in contact with water, it can never get a mineral build-up and will always be able to dissolve hydrogen gas.