Oxygen or hydrogen functional water production device

An oxygen or hydrogen functional water production device, comprising:

• a water bottle containing water;
• a faucet located on a front side of a housing and configured to receive the water bottle;
• a faucet nozzle provided in the faucet and configured, when the water bottle is mounted to the faucet, to be positioned inside the water bottle, to draw the water contained in the water bottle, and to discharge water circulated through a flow path inside the housing;
• a circulation pump connected to the faucet nozzle via the flow path through which water circulates, and configured to pump the water drawn by the faucet nozzle so as to circulate the water through the flow path;
• an electrolytic cell provided on the flow path, configured to electrolyze water introduced therein to generate oxygen and hydrogen gases so as to convert the water into functional water with a changed concentration of dissolved gases, and configured to discharge the functional water;
• a filter assembly provided on the flow path, configured to convert the water introduced therein into alkaline water while removing ozone from the water introduced therein, and configured to discharge the alkaline water;
• and
• a static mixer provided on the flow path, and configured to mix the water and gas flowing through the flow path so as to generate microbubbles.