Hand sanitizer is a liquid generally used to eliminate infectious agents on the hands.Formulations of the alcohol-based type are preferred to hand washing with soap and water in most situations. It is generally more effective at killing microorganisms as compared to soap and water.
You can get the SARS-CoV-2 virus (COVID-19) if you touch anything contaminated and then touch your face. We touch our mouth and nose a lot without even realising it. Alcohol-based hand sanitisers found to be effective at killing many types of bacteria and viruses, including the Coronavirus family.