Abstract
A microbicidal Protecting Breathing Device using an Ultraviolet Germicidal Irradiation (UVGI) air-sterilization unit, is designed and analyzed. The system is producing short-wave UV light which inactivates bacteria, viruses, and protozoa and it is connected to a full-face mask supplying sterilized inhaled air to the user and in a unique way, also sterilizes the exhaled air back to the ambient environment so covering the case of an asymptomatic transmitter. A dedicated control system is developed and built in the device for a full surveillance of the system.
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