What should you do to ensure the disinfectant is used correctly and effectively?

• A. Read and follow the manufacturer's instructions
• B. Mix with bleach
• C. Use at maximum concentration
• D. Use undiluted

Answer: (A)

Disinfectants work only when you use them exactly as the manufacturer directs, because their ability to kill germs depends on the correct dilution, the required contact time, and the surfaces they’re approved for. Reading and following the instructions on the product label ensures you apply the right concentration, keep the surface wet for the recommended duration, and use safety steps like appropriate PPE and ventilation. Skipping or altering these directions can make disinfection ineffective, damage surfaces, or create safety hazards. Using the product undiluted or at maximum concentration, or mixing it with other chemicals such as bleach, can be unsafe and may not improve germ kill unless the label explicitly allows it. So, following the manufacturer’s instructions is the best way to disinfect safely and effectively.