Here is presented a room disinfection device based in Ultraviolet-C radiation. Initially,It was designed for the periodic conditioning of culture rooms.It has an infrared detection security system that turns off the system when triggered.The system here described is easily scalable to generate higher ultraviolet dosages adding more UV-C lamps.The experimental tests showed the very high effectiveness of this device to eliminate high bacterial inocula.The sanitizing method employed by this device affects a very wide range of microorganisms and it has several advantages respect to chemical based-sanitizing methods.This device represents an open source, secure, fast and automatized equipment for room disinfecting.The device is configured in less than three minutes and it does not require continuous monitoring.SOLIDWORKS 2020 -AUTOCAD 2019 -KEYSHOT 9.0LASER CUTING -STL -X-T -LASER CUTTING