Infrared sauna - How it works?

Along with the development of technology more and more spheres of our lives change and improve. Modernity has also finally reached the sauna. Infrared Cabin, also known as Infrared Sauna is a kind of sauna which differs considerably from the original Finnish concept. What is an Infrared Cabin? How does it work? How does it benefit our bodies? How to use it and what are its drawbacks? All the answers to those questions can be found below.


Infrared sauna was invented over 50 years ago. In 1965 Tadashi Ishikawa, MD, received a patent on the zirconia ceramic infrared heaters, and in 1979 thermal systems based on Dr Ishikawa’s infrared radiation started to be used by Japanese doctors. Unfortunately, the patent protection limited the use of the invention by the general public, and it could only be shared with the rest of the globe after the patent’s expiry.

What is an Infrared Cabin (IR)/ Infrared Sauna?

An Infrared Cabin (IR)/ Infrared Sauna is a room made of wood where the traditional heater is replaced with Infrared emitters which emit infrared waves of 700-15000nm length. The temperature inside the cabin is between 30 and 60°C and the humidity does not exceed 25%.

How does Infrared Cabin (IR) / Infrared Sauna work?

The IR cabin is heated by infrared emitters built up in the wall panels which emit IR rays that penetrate our body up to the depth of 4 – 5 mm improving blood flow and causing intense sweating. The positive aspect worth noting is that as much as 80% of this energy infiltrates our organism.

And what is infrared (IR) radiation?

Infrared radiation – heat projection describes the wavelength between radio and light waves – it spans the range between 0.78µ and 1µ. Infrared radiation frequency is between 106 and 500 x 106 MHz.

To put it simply infrared radiation is invisible to human’s sight perception, but it can be felt by the skin receptors as warmth – infrared radiation is identified as thermal radiation after all.

It is worth pointing out that each body emits a certain degree of heat radiation and the higher the temperature of the heat source, the shorter and more intensive are the heat waves. Analogically – lower temperature of the body will cause longer and more dispersed infrared waves emission.

Infrared radiation is classified based on the wavelength, ranges which can be listed are:

– short-wavelength radiation (IR-A) with wavelength between 0.75 – 1.5µm

– mid-wavelength radiation (IR-B) with wavelength between 1.5 – 3µm

– long-wavelength radiation (IR-C), with wavelength over 3µm

Mentioning the above classification seems adequate when describing the properties of IR radiation – each of the listed radiation types has different characteristics and is used for different aims.

Permeability of Infrared radiation

The general rule about wavelength is that the length is inversely proportional to the tissue permeability capability – the shorter the wave, the bigger the tissue permeability. That is why IR-A radiation – as the shortest IR spectrum will penetrate the tissues deeper and heat them up considerably. The IR-B and IR-C radiation being considerably shorter will infiltrate the epidermis and cause a moderate rate of heating.

How does IR radiation influence our health?

Research has proven that heating with Infrared radiation brings relief in certain medical conditions and illnesses. Off course the effects vary depending on the person.

Regular use of Infrared Sauna will help to:

– remove toxins from the body,

– burn calories,

– reduce cellulite,

– improve digestion,

– reduce muscle fatigue,

– mitigate inflammations,

– improve the general blood circulation,

– reduce blood pressure,

– have a positive impact on your skin and its flexibility,

– reduce stress,

– refresh your mind,

– reduce headache,

– reduce fatigue,

– give you the feeling of healthiness.

It is important to contact your doctor in case of any physical problems before using the IR Cabin.

Infrared sauna – drawbacks

It is worth to focus on the medical conditions where deep heating of the organism is not recommended. People suffering from adrenal insufficiency, systemic lupus erythematosus, sclerosis multiplex, acute joint trauma (up to 48 hours after the occurrence or after the redness, swelling or increased heat symptoms have disappeared), haemophilia, or with a tendency for bleeding should avoid infrared saunas.  You should also not use sauna in case of open wounds, eye illnesses or deep sunburns. Using sauna is forbidden for those who are weakened, especially due to an illness, pregnant women (or even those only suspecting pregnancy), small children, animals, and people under the influence of alcohol. General feeling of malaise during the session and after it is also a counterindication. IR sauna is not recommended for those with any surgical implants, also silicone or those who use medications (ointments, gels, or medical creams). Before the first sauna session it is necessary to contact your doctor.

Recommended use:

Sweating – every day for about 25 – 30 min in the temperature of 50° – 55°

Rheumatism – every day for about 15 – 20 min in the temperature of 45° – 50°

Muscle stiffness – every two days for about 25 – 30 min in the temperature of 45° – 50°

Headache – every two days for about 25 – 30 min in the temperature of 45° – 50°

Cellulite – every two days for about 25 – 30 min in the temperature of 45° – 50°

Bronchitis – every two days for about 20 – 25 min in the temperature of 45° – 50°