1218. Evaluation of a Novel Sporicidal Spray Disinfectant for Decontamination of Surfaces in Healthcare

Abstract

BackgroundSurfaces in healthcare facilities are typically cleaned by manual application of liquid disinfectants. However, thoroughness of cleaning is often suboptimal and application can be challenging and time-consuming when surfaces are irregular.MethodsWe tested the effectiveness of a novel spray disinfectant technology that uses an electrostatic sprayer to thoroughly apply a sporicidal disinfectant to surfaces after minimal pre-cleaning to remove visible soil. In a laboratory setting, we compared the effectiveness of the spray disinfectant vs. manual application of disinfectant for removal of Clostridium difficile spores inoculated onto the seat, armrest, and seat back of a wheelchair and measured the time required for each method of disinfection. In a healthcare setting, we tested the effectiveness of a 15-second spray application for reduction of C. difficile spores on 130 items with irregular or hard to clean surfaces, including 30 wheelchairs, 40 pieces of portable equipment, and 30 waiting room chair seats.ResultsIn laboratory testing, application of disinfectant using the electrostatic sprayer was as effective as wiping in reducing C. difficile spores inoculated onto wheelchair surfaces, but required only one-fourth the time for application. C. difficile spore contamination was common on mobile equipment, wheelchairs, and waiting rooms chairs, and spray application of the sporicidal disinfectant was effective in reducing contamination (figure).ConclusionCommonly shared items such as wheelchairs, portable equipment, and waiting room chairs were frequently contaminated with C. difficile spores. Application of a sporicidal disinfectant using an electrostatic sprayer provided a rapid and effective means to reduce spore contamination on these surfaces. Disclosures All authors: No reported disclosures.