Watch a Demonstration ---Far infrared penetrates the body up to 2". Near infrared which is regular heat only warms the surface layer of the skin.
Infrared saunas differ from traditional saunas because they operate at a temperature of 90-145 F compared to a traditional sauna that operates at 185-230 F. This allows you to be able to breathe comfortably and enjoy the benefits for extended periods of time. Because the infrared rays safely and comfortably penetrate the skin up to 2" deep, even your organs and deep tissues are stimulated. This induces sweating 2-3 times as much as a conventional sauna. Infrared saunas use only 20% of the infrared energy
Far infrared rays or FIR are completely safe and beneficial to the human body. They are so safe that doctors use them in hospitals to warm newborn babies. FIR are naturally occurring and are the beneficial portion of sunlight that we can receive. To fully understand FIR, picture yourself sunbathing outside on a warm day and a cloud is overhead. Once the cloud moves on and the rays are now directly on your body you start to feel warmer. From the sun, your body is being heated by FIR. Another example would be placing a thermometer in the sun and one in the shade. The thermometer in the sun is warmed by FIR and will read higher, but the outside air temperature is still the same. Infrared heaters in the sauna operate the same way as natural sunlight but without the harmful side effects of solar radiation.
Sunlight is the source of life on earth. Unfortunately, not all of the energy is beneficial. Sunlight is part of a wide spectrum of frequencies, including ultraviolet and infrared rays. Visible sunlight is in the middle of this spectrum. At a higher frequency are ultraviolet rays that can cause sunburn.
At a lower frequency, however, are the gentle infrared rays. Infrared light is a product of heat production. Humans generate waves in the 6-20 micron range. The optimal output range of far infrared sauna emitters is between 5 and 14 microns which is very close to the resonant frequency of a water molecule. This similarity makes sense since our bodies are almost 70% water. This range, sometimes called "Vital Rays", appears to have special regenerative effects on the body. Our heater's output is evenly spread around the 9.4 micron point of peak human output. Because the water molecule resonates or vibrates, this vibration causes a release of cellular toxins such as mercury, aluminum, cholesterol and other toxic gases such as sulfur and formaldehyde. The energy output from the far infrared sauna corresponds so closely to the body's radiant energy that our bodies absorb 96% of the energy.