Which of the following is NOT a type of surface that should be disinfected in a salon?

Living skin is not a type of surface that should be disinfected in a salon because disinfectants are designed specifically for inanimate objects and surfaces to kill pathogens. Disinfecting living skin can cause irritation or damage, and it is not effective in the same way it is for non-porous surfaces. Instead, proper sanitation practices for skin involve cleansing and using appropriate topical products specifically designed for skin care, rather than disinfection which is reserved for tools and surfaces.

On the other hand, non-porous surfaces, tools used on clients, and countertops and work surfaces are all considered critical areas that require disinfection. These surfaces can harbor bacteria and viruses, which can be transferred to clients during services, making their proper disinfection essential for maintaining a safe and hygienic salon environment.