What kind of water does the hydrogen oxygen machine need?

What kind of water does the hydrogen oxygen machine need?
It need TDS=0 distilled water or puried water.
Internationally, we recommend Nestle and Great Value distilled water. In Asia, we recommend Watsons distilled water， C'estbon and Wahaha purified water.
If these brands are not available, choose distilled water or purified water from a well-known local brand. with less impurities, pure water, the better for the machine, the longer the machine life.