Can the mask be used repeatedly?Disease control experts recommend to continue to wear for 4 hours to replace

How long does it take to change your mask, can you use it repeatedly? On September 8th, Zhu Zili, deputy director of the Shenzhen Disease Prevention and Control Center Disinfection and Disease Media Biological Prevention and Control Institute, said in an interview with reporters that the mask is recommended to wear it for 4 hours to replace it every 4 hours. , Should be replaced in time.

According to Zhu Zili, the medical surgical mask is divided into three layers of waterproof layer, filter layer, and moisture -proof layer. The first layer close to the face is a moisture -proof layer made by non -woven fabrics. The new masks taken from the sealing bag are dry and sterile. As the citizens wear the time of wearing, the microorganisms exhaled by the human body are adsorbed on the moisture -proof layer of the mask. The gradually humid environment will breed bacteria and affect the filtration effect. Therefore, the one -time mask should not be worn for more than 4 hours.

For ordinary citizens, Zhu Zili suggested that citizens pay attention to whether the masks have been humid, damaged, odor, and pollution. If any of the above four cases should be replaced in time. Citizens must wear masks when they take subways, elevators, and supermarkets in the supermarkets.

The mask used is easy to "lurk" a certain risk of infection. Zhu Zili suggested that the citizens should not touch the outside of the mask when taking off the masks, pinch the inside of the mask with their hands, be careful not to touch the mask pollution surface. After folding several times, wrap it around the mask for two to three laps with a mask belt. After 75%alcohol or disinfection, throw it into the trash. At the same time, citizens should wash their hands with flowing water and hand wash in time.

- END -