Before disinfecting a clean surface, what should you always do?

The correct answer emphasizes the importance of understanding and following the manufacturer's instructions for disinfectants. Each disinfectant may have specific guidelines regarding how it should be mixed, applied, and used to ensure its effectiveness. Proper mixing can significantly affect the potency of the disinfectant, influencing its ability to eliminate pathogens.

Reading and adhering to the instructions helps prevent misuse, which can lead to inadequate cleaning or even hazardous situations if chemicals are not handled correctly. Following the recommended safety guidelines protects both the user and the environment, ensuring the disinfectant performs as intended. Thus, taking this step is crucial for achieving proper sanitation standards.