The Nasal Reliever contains special chips of 652 and 940 nm in each nose tube. The wavelengths released by these chips are purposed to irradiate the mucous membrane inside the nose. It can warm up the nose temperature and promote the blood circulation in the nose.
940 nanometers wavelength cannot be seen by naked eyes. The color of the 652 nanometers wavelength is dark red. Dual wavelength nm cold light 652 nm and 940 nm provides different deep layer energy to the epitrichium. The performance is much more outstanding than by the single wavelength products.