Which of the following is considered sanitation?

Sanitation refers to the process of cleaning surfaces to reduce the number of germs and visible dirt, making environments safer and healthier. This involves removing debris, dust, and various types of contaminants from surfaces, which is essential in cosmetology for maintaining hygiene standards. When surfaces are cleaned thoroughly, they become less hospitable for pathogens, thus decreasing the risk of infection.

The other options represent different levels of microbial control. Using UV light pertains to disinfection, which goes beyond sanitation by targeting and eliminating harmful microorganisms. Boiling tools is a form of sterilization, which is a more rigorous process than sanitation since it aims to eliminate all microbes, not just reduce them. Chemical disinfectants, while effective for killing bacteria and viruses, are also associated with disinfection rather than the basic cleaning represented by sanitation.

Therefore, option B accurately embodies the essence of sanitation by focusing on the physical act of cleaning to eliminate visible dirt and germs, which is a critical component in any cosmetology practice.