mask Repeatedly wearing:
Academician Zhong Nanshan once said that for ordinary people, ordinary medical surgical masks can resist the chance of virus infection. However, medical surgical masks are generally disposable, and it is recommended to wear them for no more than 4 hours, especially when the mask is damaged, damp, or contaminated by secretions, it should be replaced immediately.
Because the hot and humid environment is easy to breed bacteria, long-term repeated wearing, not only does not provide protection, but also may bring pathogenic bacteria to yourself. If it is a N95 mask, you can wear it a second time, but you should avoid contaminating the mask with viruses and bacteria.
It is best to store it in a ventilated and dry place after it is taken off. It can be worn repeatedly without damage or dirt, but no more than 5 times.
2. Continue to use the mask after cleaning and disinfection:
The structure of the mask may seem simple, but in fact it is made of a multi-layer structure. The inner layer can absorb moisture, the outer layer can block liquid (saliva, water, blood), and the middle layer can block various particles.
Special treatments are used on all levels of the mask. If it is repeatedly cleaned and sterilized by high temperature, the barrier ability to saliva and blood will decrease. Then the role of masks will be greatly reduced. What is the significance of wearing such masks?
3. Pinch the outside of the mask and remove it
Many people like to take off the mask directly by pinching the outside, but this method is very unhygienic. Especially after wearing a mask for a long time, the surface blocks all kinds of droplets, viruses, bacteria and other substances. After touching it with your hands, you can't wash your hands and then touch other places, and pathogenic bacteria are likely to be spread.
It is recommended that while removing the mask, pinch the ropes on both sides with both hands to remove it from the ears, and then immediately wash your hands with soap.
4. Change the front and back of the mask
As mentioned above, the functions of the inside and outside of the mask are different. The outside can block droplets and the inside can absorb moisture. If the inside and outside are changed, the inside will not be able to absorb moisture, and the outside will not be able to block droplets from pollution.