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In early time, people in Japan used to cure injuries and diseases using the natural hot spring. ​Among all the natural hot springs, only the CO2 hot spring is officially used in medical treatment today.  

Nagayu is the name of a small village located at Oita prefecture in southern part of Japan, it is especially famous for its natural carbonated hot springs. CO2 SPA is already been widely used in hospital, hair salon, and households nowadays.

Now you can enjoy the benefits fo ryourself and your pets with the Nagayu system.