What is FIR and why should you use it.

Emma Staniforth | 24 January 2020

We started at the forefront of infrared saunas

‘Infrared’ basically means below red. It is the name given to a portion of the electromagnetic spectrum with wavelengths slightly longer than visible light. Infrared light is invisible to the human eye. The Infrared region of the electromagnetic spectrum covers a very broad range of wavelengths from 0.7 to 1000 microns.

If this all sounds a bit technical it’s what causes the warm glow you feel on a sunny day, which comes directly from the sun’s rays. That is why you can feel a sharp drop when a cloud blocks these rays – even though the air temperature hasn’t changed.

The Infrared region of the electromagnetic spectrum is sub-divided into three main sections:-
a) Near Infrared (NIR) – wavelengths of 0.7~2 microns
b) Medium Infrared (MIR) – wavelengths of 2~4 microns
c) Far Infrared (FIR) – wavelengths of 4~1000 microns

Far-infrared radiant heat is a completely safe form of energy that heats objects by a process called direct light called infrared heat or infrared energy.

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. FIR heat provides many of the health benefits of natural sunlight without any of the dangerous effects of solar radiation.

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