To understand what is an infrared sauna, it helps to explore the science behind infrared light. Infrared energy is a safe and naturally occurring wavelength of light that we cannot see with the naked eye but can feel as heat. The sun produces infrared warmth and so do everyday items like home heaters or even our bodies. When installed inside a sauna, infrared emitters gently radiate heat that warms the body without needing to dramatically increase the temperature of the room itself. This makes the experience more comfortable for many people who find traditional sauna heat too intense. Infrared waves travel deeply into muscles and tissues, producing a warming effect that supports circulation, relaxation and recovery after long days of work or physical activity.