Which of the following is not one of the three chlorine bleach solution categories?

• A. Low level disinfection
• B. High level disinfection
• C. Blood and body fluid cleanup and disinfection
• D. Surface cleaning

Answer: (D)

Understanding how bleach solutions are categorized helps distinguish cleaning from disinfection and the depth of germ kill.

Low level disinfection and high level disinfection describe how thoroughly the solution can reduce or kill microorganisms on surfaces. Blood and body fluid cleanup and disinfection refers to a specific decontamination procedure used after spills, combining cleanup with disinfection to address potentially contaminated materials. Surface cleaning, on the other hand, is about removing soil and reducing visible dirt and microbes, but it is not itself a disinfection category for bleach solutions. It’s a cleaning step, not a disinfection tier, so it isn’t one of the three bleach solution categories.