What must be included with a hydrogen peroxide cleaning system to ensure it works correctly?

A neutralizing disk is essential for a hydrogen peroxide cleaning system, as it facilitates the safe and effective breakdown of residual hydrogen peroxide after cleaning. This neutralizing disk helps convert hydrogen peroxide into water and oxygen, minimizing any potential irritation or harm from leftover chemicals. Properly neutralizing the hydrogen peroxide not only enhances safety for users but also ensures that any surface being cleaned is free of chemical residues, making it ready for immediate use after the cleaning process.

In the context of the other options, while UV light may be used for disinfection purposes, it does not directly aid the chemical efficacy of the hydrogen peroxide system. Similarly, a microfiber cloth can be useful for applying or wiping down surfaces but is not a critical component of the cleaning mechanism itself. Lastly, a replacement case may pertain to the system's housing and maintenance but does not impact the chemical reaction or effectiveness of the cleaning process involving hydrogen peroxide. Thus, the inclusion of a neutralizing disk is vital for the system to function properly and safely.