pdf What are the characteristics and advantages of physical disinfection sterilization methods compared with chemical ones

Hospital disinfection and hospital environment is more and more highly valued, the hospital disinfection methods more and more, not all medical equipment using a single disinfection method, but according to the nature of the disinfection items to choose the disinfection method. Commonly used disinfection methods are: 1. Physical disinfection (thermal disinfection, ultraviolet disinfection, low-temperature plasma disinfection, filtration sterilization, electrostatic sterilization, microwave methods) 2. Chemical disinfection methods (sterilizing agents, high-efficiency, intermediate and low-effective disinfectants) 3. Biological disinfection methods (phage, antimicrobials, Chinese herbs).

There are many ways of disinfection, but not all hospitals have such good medical equipment. Biological methods of disinfection are usually not thorough, physical sterilization is not very flexible, and some chemical methods have many disadvantages. When disinfecting surgical instruments, bed linen, clothes and the environment, disinfectants need to be manually formulated into different concentrations according to the different objects to be disinfected. It is necessary to manually prepare different concentrations of disinfectant. It is not only inconvenient, but it is also difficult to control the concentration of the final disinfectant and the disinfection effect is not guaranteed. Long-term exposure of staff to disinfectants can cause serious damage to skin and nails. Hospital disinfection supply room is also always filled with the smell of heavy disinfectant, which also causes great harm to the health of medical staff.