Final answer:
When your hands are visibly soiled, wash them for at least 20 seconds with soap and warm water. Rub the soap all over your hands, including the most commonly missed areas. Rinse thoroughly and dry your hands completely.
Step-by-step explanation:
When your hands are visibly soiled, it is important to wash them for at least 20 seconds with soap and warm water. This will help to remove dirt, germs, and other pathogens that may be present on your hands.
Make sure to rub the soap all over your hands, including the thumb, wrist, areas between the fingers, and skin under the fingernails. You can use a nail brush to remove any debris or microorganisms under your fingernails.
Rinse your hands thoroughly, ensuring that the water flows from the wrist to the fingertips. Finally, dry your hands completely with a clean towel or hot air blower.