Which sequence best describes disinfecting a contaminated surface?

• A. Wipe With Water Only
• B. Remove Soil, Apply EPA-Registered Disinfectant, And Follow The Recommended Contact Time
• C. Wipe With A Dry Cloth After Cleaning
• D. Disinfectant Is Not Necessary

Answer: (B)

Disinfection after contamination is most effective when you combine cleaning with a disinfectant. Start by removing soil and organic matter because dirt can shield germs and reduce how well a disinfectant works. Once the surface is clean, apply an EPA-registered disinfectant and keep the surface visibly wet for the label’s recommended contact time. This dwell time is the period the product needs to stay on the surface to kill the pathogens present. Wiping with water only won’t kill germs, and drying with a dry cloth after cleaning doesn’t provide disinfection. Saying a disinfectant isn’t necessary ignores the risk of pathogens on a contaminated surface. Using a properly labeled product and following the contact time ensures effective disinfection.