Which of the following is NOT one of the cautionary tips to consider when handling disinfectants?

• A. Use disinfectants directly on dirty, soft, porous surfaces.
• B. Wear gloves when handling disinfectants.
• C. Ensure proper ventilation.
• D. Read label instructions.

Answer: (A)

Handling disinfectants safely means cleaning before disinfection and following the product’s instructions. You should wear gloves to protect your skin, ensure there is good ventilation to avoid inhaling fumes, and read the label to follow the correct dilution, contact time, and safety precautions. Using disinfectants directly on dirty, soft, porous surfaces isn’t appropriate because dirt and porous materials can shield germs and reduce the product’s effectiveness, and the label usually directs cleaning first. That makes this option the one that does not fit with proper cautionary tips.