Infrared saunas use a special heater that generates infrared radiation rays similar to that produced by the sun. Unlike the sun’s ultraviolet radiation, infrared is said to be beneficial to overall health. Infrared radiation has been shown to kill the bacteria responsible for acne. In an infrared sauna, the electric heaters warm the air and also penetrate the skin to encourage perspiration, producing many of the same health benefits of traditional steam saunas.