Disinfection & Sterilization How long until UV light kills bacteria? February 4, 2026 by Tanp | Leave a Comment UV light is a powerful tool for disinfection, and it can kill bacteria in a matter of seconds to minutes, depending on the intensity and exposure time. This makes it an effective method for sanitizing surfaces, air, and water. However, the effectiveness of UV light varies based on several factors, including the type of bacteria […] Read more ยป