The hydrogen oxygen machine (The trademark FREEAIR has been authorized by Europe representative of Angelbiss) can continuously produce high concentrations of hydrogen from water, using a process called electrolysis. It can be used for hydrogen therapy and health care. The body absorbs hydrogen mainly to fight toxic free radicals and inflammation. Studies have shown that inhaling hydrogen can increase energy, slows down the ageing process and improves muscle recovery after exercise. At the same time, it is a good adjunct to the treatment of more than 60 diseases such as tumors and chronic diseases. HG-600 series hydrogen machines use SPE electrolysis technology, which is non-corrosive, produces no impurity gases and is energy-saving and environmentally friendly.