Blood spills always present a problems when they happen—and believe us they will happen. HBV or hepatitis B can survive outside of the body at least 7 days and still be capable of causing infection. So what do you need to know when handling a blood spills on environmental surfaces? You should always clean up blood spills, including dried blood, which can still be infectious, using 1:10 dilution of one part household bleach to 10 parts of water for disinfecting the area. Always use gloves and eye protection when cleaning up any blood spills.