When hands are visibly dirty, contaminated or soiled, wash with non-antimicrobial or antimicrobial soap and water. Always wash your hands before eating and after using the restroom. Use warm water with a nickel to quarter size of liquid soap. Lather, rub all surfaces and under nails. Rub for at least 15 seconds and rinse well. Dry hands with a paper towel, use that towel to turn off faucets and open the door.
If hands are not visibly soiled, use an alcohol-based hand rub for routinely decontaminating hands. Cover all surfaces until hands feel dry, approximately 20 seconds. After approximately 10 uses, wash your hands with soap and friction.
For more information on proper hand washing, click here and here.