1. does not contain any substances that are toxic, harmful and have peculiar smell to human body.
2. The hardness of water is between 30 and 200 (calculated by calcium carbonate).
3. The mineral content needed by human body is moderate.
4. The 4.pH value is weakly alkaline 7.45-8.
5. Dissolved oxygen in water is not less than 7 ml per liter, and carbon dioxide is moderate.
6. The half-width of water clusters is less than 100 Hz (energetic small molecular water).
7. Nutritional and physiological functions of water