CleanSafe Hand Sanitizer Liquid 5 LitrePRODUCT DESCRIPTION What is a hand sanitizer? It is a liquid, gel or foam generally used to kill the vast majority of viruses bacteria microorganisms on the hands. You need only to use soap and water to wash your hands most time. Soap and water work to remove all types of germs from hands. However, using a sanitiser acts by killing certain germs on the skin and alcohol based hand sanitisers can quickly reduce the number of germs in many situations.