What is Infrared?
Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. The radiation penetrates the body and heats through a process called conversion, instead of heating the air around you.



Infrared Saunas:
An infrared sauna is usually a wooden box, or small wooden room, containing several infrared heaters. In a warm environment, an infrared sauna could be open air and still heat the users in the same manner, since the heaters don't rely on the air being hot, but only hot enough such that the body doesn't cool down without sweating. All the same, normally the units are contained in a room, allowing the air to heat and in effect simulating the feel of a traditional sauna. In other words, the sauna box creates the atmosphere of the sauna while the heaters provide the actual infrared therapy.

In an infrared sauna, the infrared heater produces radiant energy, which is the same as the heat from the sun, only without the harmful ultraviolet rays. Most of these heaters draw on technology developed in 1965 by Dr. Tadashi Ishikawa, a member of the Research and Development Department of Fuji Medical.