We are the manufacture-direct of infrared saunas and steam saunas. The special features of our infrared saunas are:10 years warranty 10 infrared heaters in 2 person model,15 heaters in 3 person model,16 heaters in 4 person model.Generator of both negative ion and ozone generates ozone to disinfect the air heaters have ceramic tubes and coated with materials, which can generate far-infrared light.All models use without any galvanothermy wire