What is required in each salon and school regarding hand washing facilities?

The requirement for salons and schools to have a soap dispenser and either disposable towels or an air dryer is crucial for ensuring proper hygiene practices. This regulation is designed to promote cleanliness and prevent the spread of infections or contaminants. Having a soap dispenser allows for effective hand washing, as using soap is essential to remove dirt, bacteria, and germs effectively. Furthermore, providing disposable towels or an air dryer helps ensure that after washing, hands can be dried in a manner that minimizes the risk of recontamination.

In contrast, the other options either constitute insufficient hygiene practices or do not comply with the necessary standards. Common towels can harbor bacteria and should not be used due to the associated risks of cross-contamination. Installing hand washing facilities without soap does not meet the basic requirement for cleanliness, as soap is a necessary component for effective hand hygiene. Lastly, while having both cold and hot water is important, simply providing water alone, without soap and proper drying methods, would not suffice in meeting the health and safety standards expected in these facilities.