Provide cleaning and disinfection of environmental surfaces in the context of COVID19.This guidance is intended for health care professionals, public health professionals and health authorities that are developing and implementing policies and standard operating procedures (SOP) On the cleaning and disinfection of environmental surfaces in the context of COVID-19.Disinfection is the reduction in the number of bacteria, viruses, or fungi to a desired concentration. Sterilization, or the complete elimination of all microorganisms, The actual concentration of microorganisms required to cause a disease (Or some other criteria) is not welldefined under most conditions, and disinfection procedures have developed primarily from an empirical basis.