What Are Infrared Rays?
Infrared light is the spectrum of light that we experience as heat. Although it is invisible to the naked eye, we can feel its warmth. The sun emits the majority of its energy in the infrared range. Infrared rays can warm your body directly without needing to heat the surrounding air, a process known as conversion.
Infrared is categorized into three segments based on their wavelengths measured in microns: Near Infrared (0.76-1.5 microns), Middle Infrared (1.5-5.6 microns), and Far Infrared (5.6-1000 microns). Of these, Far Infrared has the ability to penetrate organic materials, including the human body, by two to three inches, creating a consistent and uniform warming effect.