HOW UVC-LIGHT WORKS
UVC-light is a very effective and well-documented disinfection method that has been used for more than 100 years. It was the Danish-Faroese scientist and Nobel laureate Nils Finsen who discovered that ultraviolet light had a special effect on bacteria. Therefore, UVC-light today is often used to disinfect equipment. For example, UVC-rays are used for air and water purification in hospitals and in food companies as well as in the water supply.
UVC-light can neutralize most types of microorganisms, including bacteria, viruses and fungi. The UVC-light destroys the DNA and RNA of the cells and prevents the cells from reproducing and multiplying. UVC-light can reduce the effect of bacteria and viruses by more than 99.9999% depending on the strength of the light and the time the organisms are exposed.
Coronavirus is degraded by exposure to UVC-light. The best wavelengths for this are in the range of 250-280 Nm (one nanometer equals one billionth of a meter). The exact dose needed to inactivate COVID-19 is not known yet, but there is broad agreement among researchers that 1000 J / M will suffice.
When using UVC-light, it is important that the light hits the surface and illuminates bacteria and viruses. The light does not work in shadows and cannot penetrate dirt.
Large amounts of UVC-light are harmful to normal cells and especially the eye is particularly sensitive. However, the light can be easily shielded with non-transparent materials or approved windows so that you are not exposed to the ultraviolet light during use.