Name the four levels of decontamination used in cosmetology.

• A. Disinfecting, cleaning, and sterilizing
• B. Cleaning and sanitizing only
• C. Sterilizing only
• D. Cleaning, sanitizing, disinfecting, and sterilizing

Answer: (D)

The four levels of decontamination used in cosmetology are cleaning, sanitizing, disinfecting, and sterilizing. Cleaning removes visible dirt, oils, and debris from surfaces and instruments using soap and water or detergents, and is the essential first step because debris can shield microbes from later treatments. Sanitizing lowers the microbial load to a safe level on surfaces or items, typically with approved sanitizers, reducing risk but not eliminating all microbes. Disinfecting destroys most pathogenic organisms on inanimate surfaces, following label instructions for contact time and surface compatibility; it does not always kill every organism or spores. Sterilizing destroys all forms of microbial life, including spores, usually through methods like autoclaving or chemical sterilants, and is used for instruments that penetrate the skin or enter sterile tissues.