Tourmaline includes many kinds of energy stones, such as medical stone, volcanic stone, germane, radium stone, salt rock and so on. It is a kind of tourmaline. Salt pots are made of salt rock and used to make floors or tiles. In the built constant temperature room, the room temperature is controlled between 35℃ and 42℃. After the steam room is electrified, when the elements of germanium, carbon and tourmaline contained in the heating plate installed in it are excited to a certain temperature by electric energy conversion, a kind of energy with different wavelengths will be generated. Thereby promoting the disintegration of pathological dimer of dead cells and enhancing the self-regulation mechanism and immune ability of human body. Through heating and heat preservation, the energy of tourmaline can be released rapidly and strongly in the form of far infrared rays, negative ions and micro-currents. The energy field composed of tourmaline indirectly provides energy to human body through air, which makes human cells change from dormant state to moving state, accelerates human blood circulation and metabolism, discharges human endotoxin, balances human pH value and supplements new ones.