UVC meter used in UV sterilization
In a hospital with a large number of people every day, the new coronavirus may have become a hiding place here. The patients diagnosed every day are inside, and the patients who have fever are waiting to be diagnosed. Even if the patients are removed, there are many new coronaviruses on the protective clothing of the doctors and nurses who care for the patients. Even if it does not directly infect healthy people, the new coronavirus will survive in the air for several hours, and it is prone to secondary transmission. Therefore, the ultraviolet sterilization lamp is a sterilization tool that the hospital needs at this stage. Speaking of ultraviolet germicidal lamps, it is actually a low-pressure mercury lamp, which uses low-pressure mercury vapor to be stimulated to emit ultraviolet rays to kill viruses. The ultraviolet rays that are stimulated cannot be seen by the naked eye. Ultraviolet germicidal lamps also have two wavelengths of ultraviolet light.
Generally, ultraviolet light with a wavelength of 253.7nm is used to cause the cross-linking of nucleic acids and proteins to rupture the virus, so that the nucleic acid loses biological activity and causes the death of the virus. The ultraviolet sterilization lamp with a wavelength of 185nm will react to release ozone for sterilization, which is called ozone lamp. However, it is necessary to know whether the ultraviolet sterilization lamp can effectively kill the new coronavirus in the hospital. It is necessary to use the UVC meter to detect the ultraviolet intensity of the sterilization lamp. As long as the intensity reaches the standard, it will continue to effectively kill the new coronavirus.