Sunlight dazzles with a spectrum of visible colors and also bathes us in invisible rays, including the vast infrared spectrum. Interestingly, humans emit infrared heat, notably in the far infrared range centered at 9.4 microns. This specific wavelength, deeply penetrating up to 1 ½ inches into our tissues, is incredibly harmonious with our body, initiating a purifying process to dispel accumulated toxins.

Experience this resonant frequency in Clearlight® infrared saunas. The deep, penetrating heat naturally elevates the body's core temperature, promoting detoxification through sweat via our largest organ – the skin. On a cellular level, this immersion mimics the rejuvenating warmth, circulation, and vitality typically associated with physical activity.



A traditional sauna, such as what you might find at a gym, has a box-shaped heater with hot rocks on top of it. This type of sauna heats the air and then the air warms the person. A typical traditional sauna will operate at 180ºF to 200ºF. Many people find it difficult to breathe and relax at these high heat levels and as a result, don’t stay in the sauna for more than 5 or 10 minutes. 

In a far infrared sauna, the normal operating temperature is a dry 120ºF to 150ºF. In this type of sauna, the air temperature is of secondary importance to the infrared wavelengths themselves when it comes to the real goal of increasing core body temperature. Infrared wavelengths lose only a relatively small percentage of their energy to heating the air, with the majority of the energy penetrating deep into your tissue, directly working to increase core body temperature.



Full spectrum refers to the entire infrared spectrum:  near infrared, mid infrared and far infrared.  With the addition of powerful heaters emitting all 3 infrared wavelengths, you’ll receive the maximum benefit from your Clearlight® sauna.

The sun is the primary source of radiant energy, but not all of this energy is beneficial. Although life needs energy from the sun, too much sunlight damages the skin. Infrared heat provides many of the healthy benefits of natural sunlight without any of the dangerous effects of solar radiation.

The efficacy of infrared waves is very broad and the subject of recent study by NASA. Among the infrared waves, the far infrared rays, which have a wavelength of 6-12 microns, are especially good for the human body. These waves have the potential to penetrate 1.5 to 2 inches into the body effectively elevating your core body temperature from within.

Near and mid-infrared range from 0.75 – 5.5 microns and enhance the benefits of far infrared.  These wavelengths have shallower penetration and thereby aide in wound healing by bringing more blood to the affected area, helping reduce inflammation, and much more.  Clearlight® estimates 10-15% additional benefit from a full spectrum sauna.



Infrared heat is all around us – it’s essential for human life and all life on our planet. This photo shows the infrared heat emitted by the human body. You can see how the greatest amounts of heat come from the core rather than the extremities.

The far infrared rays in Clearlight® infrared saunas consist of similar wavelengths as those emitted naturally by the human body. For this reason, infrared heat is so safe. In fact, it’s been used for decades in hospitals as the warming mechanism in incubators for preemie babies. These healthy, life-giving rays, without the harmful UV rays of the sun, are part of the far infrared wavelength.

The bio-identical wavelength frequency of infrared heat, is one potential explanation of why many feel energetically reinvigorated and balanced from exposure to far infrared waves. In the same way that they nourish and warm a preemie, the infrared rays penetrate deeply to promote healing and revitalization in each of us.

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