Cleaning and disinfecting are two different processes:
Cleaning means to physically remove germs (bacteria and viruses), dirt and grime from surfaces using a detergent and water solution. A detergent is a surfactant that is designed to break up oil and grease with the use of water.
Disinfecting means using chemicals to kill germs on surfaces. Itâ€™s important to clean before disinfecting because dirt and grime can reduce the ability of disinfectants to kill germs. Disinfectants containing â‰¥ 70% alcohol, quaternary ammonium compounds, chlorine bleach or oxygen bleach are suitable for use on hard surfaces (that is, surfaces where any spilt liquid pools, and does not soak in).
Cleaning reduces the soil load on the surface, allowing the disinfectant to work and kill the COVID-19 virus. Disinfectant may not kill the virus if the surface has not been cleaned with a detergent first.