Not all saunas work the same way. Infrared and traditional saunas both use heat, but they deliver it differently — which changes the temperature, feel and overall experience. Before we officially open, here’s a simple guide to the difference between the two. How infrared sauna works Infrared saunas use infrared light to warm the body more directly, rather than relying only on very hot air to heat the space around you. Because of this, infrared saunas usually operate at a lowe