What are the benefits coming from the far infrared ray? (Do you need Far infrared box or a simply a heat box)?
Among the total spectrum of solar rays coming from the sun, the far infrared ray is the safest and the most beneficial. For example the visible light spectrum, with very short wave lengths, is reflected away from the body. When near infrared wave’s heat organic substances the surface gets hotter than the interior and the interior get heated by conduction from the surface. By contrast, far-infrared penetrates deeply with a very uniform warming effect. That is why if the heaters do not generate far infrared ray, they will not give you the same effect as our far infrared heaters. In Melbourne show, a lady told us that she got completely different feeling from hers after sitting in ours for some minutes.