Which practice is primarily used to remove visible dirt from surfaces?

• A. Cleaning
• B. Disinfection
• C. Sterilization
• D. Sanitization

Answer: (A)

Removing visible dirt from surfaces is all about cleaning. Cleaning uses soap or detergent with water and some scrubbing or rinsing to physically lift and wash away soils, oils, and debris so the surface looks and feels clean. It’s the essential first step because it actually removes the grime you can see, which also helps anything you do afterward—like applying disinfectants or sanitizers—work more effectively, since soils can shield microbes or react with those chemicals.

Disinfection aims to destroy most pathogens on a surface after it’s been cleaned, but it doesn’t focus on removing visible dirt. Sterilization goes further, eliminating all microorganisms (including spores) and is not the routine method for general surface cleaning. Sanitization lowers microbial levels to a safe count, but, again, its main goal isn’t removing visible soil.