UV light in the range of wavelengths between 200 and 300 nm is capable of inactivating microorganisms, such as bacteria and viruses, thus disinfecting both air and solid surfaces.
Rapid decontamination of the used patient-care beds and hospital rooms before admission of subsequent occupants is a major requirement in hospitals in view of the limited availability of beds.
Coronavirus is sensitive to UVC light, as in the case of other viruses and bacteria.
The germicidal effects of UVC irradiation with a peak intensity at 254 nm results in cellular damage of the virus, thereby inhibiting cellular replication.
Often, chemical disinfectants are not enough to remove the bacteria and viruses found in hospitals and other contamination prone environment.
Unlike chemical approaches to disinfection, UV light provides rapid, effective inactivation of microorganisms through a physical process.