The Relax Sauna (made in Taiwan) is the only portable Sauna in the world that uses a special technology, i.e.  a semi-conductor chip.  This makes the Relax Sauna not only unique, but also more effective than any other portable (or wooden) sauna.  The Relax Sauna technology is listed as a medical device with the FDA.  (Our 510(k) # is K053376.)  The FDA has verified that the invisible light rays produced by the Relax Sauna radiators are between 4 - 14 microns (at 140-170 degrees) , which means that these rays are 100% absorbable Far Infrared Light, which we call  healing light.  The Relax Sauna patented ceramic semi-conductor chips filters out all non-healing energies, which can be a distraction for absorbing the pure healing FIR light. 

All other rays of light (including Near Infrared)  are NOT absorbable by the human body, and are usually therefore resisted by the body, and in the case of Ultra Violet Light, which is very strong, can cause not only resistance, but tension, friction, and then sun tan and/or sun burn.

The Relax Sauna semi-conductor chips converts electrical energy to absorbable FIR energy between 4-14 microns (at temperatures up to 140 - 170 degrees), excluding both near and medium infrared rays which can be harmful to the body.  Hundreds of other “FIR” Saunas made in China use a hot plate (or heating element)  and a black cloth impregnated with charcoal/carbon, which generates only about 20% FIR energy.   From experience, we know the Relax Sauna “feels so much better”, and takes a lot less time to complete a sweating treatment than any of these other less expensive saunas.   The technology of the Relax Sauna is light waves (no pun intended) ahead of the “primitive” technology used in other portable saunas.  We recognize the role these saunas do play in the promotion of the healing affects of Far Infrared Light.  We don’t however believe, they have the intensity to heal large diabetic ulcers in 7 weeks, 20 minutes a day, as The Relax Sauna technology has shown itself able to do. 

We have found that the Relax Sauna technology works in about 1/2 the time of other portable sauna technologies.   Generally it just takes about 8 minutes to start sweating in the relax sauna, compared to 18 minutes in most other portable saunas.  In 20 minutes, you can experience a total sweating treatment, as compared to about 55 minutes in other portable saunas.  We have also found that many individuals who have purchased Relax Saunas from us have previously owned other portable saunas that they were very disappointed with, in that they did not sweat and  did not get hot enough.  The Relax Sauna generates a very PURE Far Infrared Light, as well as a very Intense FIR light.  The Relax Sauna also uses 1500 watts, while most of the other portable saunas only use about 1000 watts, and thus do not generate as strong a healing light.

The Relax Sauna has a patent on the 40 semi-conductor chips used in their radiators.  This is the Differentiating factor in creating the  Far Infrared Healing Light.  It took 10 years to invent this chip. A recent imitator of the Relax Sauna claims to have 2 ceramic radiators (that look like they cost $15 each at a discount center) that generates 7-14 microns of energy, and later they say it generates 4-14 microns of energy.  They show a graph showing that it does this at 20 degrees C (68 F).    From what we can ascertain, at high temperatures (110 - 170 degrees), their radiators emit very little, if any FIR Healing Light.  We believe their advertising to be very  misleading, probably untrue,  & contradictory.  They imply they use semi-conducator chips, which is definitely not true.  We have customers who have bought this sauna, reported to us how harsh the energy was in comparison to the warm energy they experienced in the Relax Sauna,  were incredibly disappointed, returned them, and bought ours, and appreciate the Relax Sauna immensely.  A good sweat does not mean you are eliminating heavy metals or toxins if it is not FIR healing light.