What must a barber perform after using tools on a client?

After using tools on a client, it's essential for a barber to disinfect the tools before using them on another client. This practice is crucial for maintaining hygiene and preventing the spread of infections or diseases. Disinfection involves using appropriate chemical solutions to eliminate pathogens, which ensures that tools are safe and clean for subsequent clients. This step is a fundamental part of professional grooming and is mandated by health regulations to safeguard both client and barber.

While cleaning with soap and water is beneficial, it does not thoroughly eliminate all microorganisms. Storing tools in a closed container and sharpening them are also important aspects of tool maintenance, but they do not address the immediate need for infection control following a client's session. Only disinfection directly targets the risk of cross-contamination between clients.