SUMMARY
COVID 19 pandemic has led the world authorities, in particular health authorities, to totally reconsider the infectious problems in all public places and in particular in hospitals, that are also burdened by specific risks, due to the concentration of subjects at risk and the consequences that necessary treatments, such as resistance of infectious agents to the drugs used, may involve. Therefore, traditional and innovative methods were compared to obtain adequate protection from contaminants, paying particular attention to the disinfection method by means of ultraviolet rays emitted by a special robotic instrument named R2S Robot. The studies carried out on the subject show that UV-C method represents a rational, effective and economically sustainable choice to ensure adequate disinfection, not only of hospital environments in general but also of frequently visited environments such as public areas and institutions, schools of all types and levels, public and private offices, especially in the light of the new regulations that have totally changed the general approach and the degree of responsibility towards not only the regular visitors of the nosocomial environments, but also the dedicated operators.