Ultraviolet (UV) light is a short wavelength light invisible to the human eye. When it comes to wavelengths, lights in our homes and outdoors are a longer wavelength light while X-rays are a shorter wavelength light. UV falls between the two
It was discovered in the late 1800s that UVC light can actually be used as a UV light sanitizer with the ability to kill up to 99.9% of germs. The technology was put to use in the early 1900s in Europe for water purification and is still used today.
For disinfection of surfaces, UV radiation can be applied as an additional treatment. This is especially important in medical environment, in laboratories and food industry (packaging, production lines and products).