1, disinfection principle is different: infrared disinfection uses radiation to generate high temperature, thus sterilizing, while ultraviolet disinfection destroys the DNA structure of bacteria and viruses, thus killing germs.

2. Different wavelengths: Infrared is an electromagnetic wave with a wavelength between microwave and visible light and longer than red light. Ultraviolet refers to the total wavelength from 10nm to 400nm in the electromagnetic spectrum, which is invisible to human vision.