The present invention discloses a
plasma sterilization device for a hospital exhaust
system, which mainly includes a box body, a
control system, an inlet exhaust fan, and an outlet exhaust fan; a partition is arranged inside the box body, a
plasma generator is arranged on the left side of the partition, and a
ultraviolet UV
light source chamber is arranged on the other side; ventilation holes are arranged on both sides of the box body and are respectively connected to the inlet and outlet exhaust fans through inlet and outlet air pipes; a gas flow
regulator is arranged on the inlet air
pipe, and an alarm is arranged on the outlet air
pipe; a
control system is arranged on the outer wall of the box body. The exhaust fan sends the
ambient air containing microorganisms such as
bacteria and germs through a filter screen into the low-temperature ultra-high-pressure
plasma generator, and under the action of active groups of plasma, high-speed particle breakdown, and
ultraviolet light, etc., the microorganisms lose their activity. At the same time, conventional
ultraviolet disinfection is assisted to further ensure the sterilization quality; the invention has the characteristics of simple structure, convenient operation, high safety, and good disinfection and sterilization effect.