Healthcare associated infections (HAIs), particularly those caused by multidrug-resistant organisms (MDROs) represent a significant impact on patient morbidity and mortality and increase the financial burden on healthcare systems. Contaminated environmental surfaces have been shown to be an important source for transmission of HAIs. Effective cleaning and disinfection can decrease environmental pathogens, reducing the risk of infections, but hospital environments are complex, which can often result in cleaning that is inadequate.
To offset these challenges, adjunct technologies such as UV-C disinfection have been introduced to enhance the effectiveness of manual disinfection, particularly in hospital settings where healthcare- associated infections are of major concern. UV-C has long been proven as an effective technology to reduce contamination and the potential for infection by using short-wavelength ultraviolet (UV-C) light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their DNA, leaving them unable to perform vital cellular functions.
There are many UV-C devices offered in the market with varying designs. Since UV-C disinfection involves light waves, it is important to ensure these devices are in “line of sight” to those surfaces most likely to be contaminated or frequently touched in a patient environment. As demonstrated in several studies, the power and speed of UV-C disinfection can be impacted by distance and angle. The strength of the UV-C light decreases the further away it gets from the light source, following the inverse square law.