Far Infrared vs. Near Infrared: Understanding the Key Differences and Benefits
Far Infrared (FIR) and Near Infrared (NIR) are both types of invisible light that are part of the electromagnetic spectrum, but they differ significantly in their wavelengths and effects. People often mix up FIR and NIR because both are types of infrared light, but they have different uses. FIR is commonly used in saunas and…