kangenwell.com/why-kangen-water/

Kangen water ionizers are the only water ionizers in the world to receive the Gold Seal certification award from the WQA. The Water Quality Association(WQA) is one of the most reputable non-profit trade associations in the world and the WQA Gold Seal Certificate is a highly recognized and prestigious award only presented to the most reliable and trusted manufacturers of quality drinking water. Used as a Medical Device in Hundreds of Hospitals in Japan. ISO 13485 - Proof of licensing of Medical Device ISO 13485 – Proof of licensing of Medical Device Kangen water machines are approved by Japan’s Ministry of Health, Labor & Welfare and has supplied ionized water to many hospitals in Japan for over 40 years.