UVGI SYSTEMS
UVGI is a disinfection method that uses UV-C light to eliminate or inactivate micro-organisams, such as bacteria, viruses, moulds and other pathogens. UV-C is a type of ultraviolet at wavelength of 280 – 200 nanometre, which is the most effective wavelengths for germicidal control. It can be used to prevent the spread of certain infectious diseases.
As a supplemental air-cleaning measure, UVGI is effective in reducing the transmission of airborne
bacterial and viral infections in hospitals, military housing, and classrooms, but it has only a minimal
inactivating effect on fungal spores.223–228 UVGI is also used in air handling units to prevent or limit the
growth of vegetative bacteria and fungi. Most commercially available UV lamps used for germicidal
purposes are low-pressure mercury vapor lamps that emit radiant energy predominantly at a wave-length
of 253.7 nm.2