This indoor sauna, with standard control system, LCD display, touch control, LED spotlights, to create a warm bathing environment, sauna back body, let you comfortable. The body repeatedly uses dry steam to rinse the cold and hot stimulation to repeatedly expand and contract blood vessels, enhance blood vessel elasticity, and prevent the effect of hardening of blood vessels. The advantage of sauna is that it can dilate capillaries in a high temperature environment, discharge a large amount of sweat, and discharge various garbage in the body, which is called vascular gymnastics in physiology. Sauna can enhance the elasticity of blood vessels, prevent vascular sclerosis, can also consume subcutaneous fat, has the role of bodybuilding and weight loss, can promote cell metabolism, with beauty and skin care, anti-aging methods.