Ensure that students, teachers, and staff are aware that they should not touch their masks while wearing them and, if they do, they should wash their hands before and after with soap and water or sanitize hands (using a hand sanitizer that contains at least 60% alcohol).

Wet hands with warm water and apply soap. Vigorously rub hands during washing for at least 20 seconds with special attention paid to the backs of the hands, wrists, between the fingers and under the fingernails. Rinse hands well. Completely dry hands with a single-use towel or a warm air dryer.

Cleaning- Removes germs, dirt, and impurities from surfaces or objects. Cleaning works by using soap (or detergent) and water to physically remove germs from surfaces. This process does not necessarily kill germs, but by removing them, it lowers their numbers and the risk of spreading infection (CDC, 2016).

Disinfecting - Kills germs on surfaces or objects. Disinfecting works by using chemicals to kill germs on surfaces or objects. This process does not necessarily clean dirty surfaces or remove germs, but by killing germs on a surface after cleaning, it can further lower the risk of spreading infection (CDC, 2016).

Sanitizing - Lowers the number of germs on surfaces or objects to a safe level, as judged by public health standards or requirements. This process works by either cleaning or disinfecting surfaces or objects to lower the risk of spreading infection (CDC, 2016). Since sanitizing is based on quantitative number of microbes killed it is most often used by a regulatory agency to certify the effectiveness of a product.

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