TO CLEAN AND DISINFECT AND DEODORIZE HARD, NONPOROUS SURFACES: Wipe surface to be disinfected. Use enough wipes for treated surface to remain visibly wet for the contact time listed on label. Let air dry. Gross filth must be removed prior to disinfecting. If streaking is observed, wipe with a clean, damp cloth or paper towel after appropriate contact time has expired. Killing C. difficile spores: Pre-clean hard, nonporous surfaces by removing gross filth. Wipe surface to be disinfected. Use enough wipes for treated surface to remain visibly wet for 3 minutes. Let air dry. Follow special instructions for cleaning prior to disinfection.