date:Oct 17, 2018
t 20 seconds. The best way to estimate this number is to sing the Happy Birthday song twice. Make sure you wash the backs of your hands, between your fingers, and under your nails. Then thoroughly rinse your hands, then dry them with a clean towel or paper towel.
Hand sanitizers are not as effective as soap and water, but they are a good substitute when soap and water arent available. These sanitizers should be alcohol-based.