Wet masks affect protection. What are the precautions for wearing a mask?

After New Year's Day on June 5438+ 10, 2020, a sudden visit from Xinguan pneumonia to Wuhan, Hubei, China, made the city ill overnight! In order to avoid the risk of human-to-human transmission, the expert group advises people to wear masks and take personal protective measures! So from that moment on, masks have become a necessity for everyone to travel every day, and the virus is rampant, resulting in a tight supply of masks! What is emphasized here is that in the case of epidemic prevention and control, it is very important to scientifically standardize wearing masks. Wearing a mask can not only prevent harmful substances from entering the respiratory tract, but also prevent yourself from coughing, sneezing and splashing droplets into the air during the conversation to cause infection.

It has been raining continuously recently, and it is wet and cold outside. When wearing a mask to enter a relatively high temperature indoor place, the mask will be soaked instantly. Although the wet mask is a little uncomfortable, many people think that it will not affect the protective effect. Wu, deputy director of the Jiangsu Provincial Center for Disease Control and Prevention, said that masks mainly rely on electrostatic force to absorb viruses. Once they are wet, the electrostatic effect is eliminated, which will affect the protection effect. So the mask should be replaced as soon as possible after it is wet. So how do we properly wear masks for personal protection in our daily life?

First of all, when wearing or taking off a mask, pay attention to personal hygiene and wash your hands frequently to avoid viruses and bacteria polluting the surface of the mask. ? Secondly, it should be worn correctly, not on both sides at the same time. When wearing a mask, the nose clip side of the mask should face upwards and the dark side should face outwards. If the depth of the mask is not obvious, the positive and negative can also be distinguished by the folds of the mask, which are downward and outward. Thirdly, the time to wear a mask should not be too long. It usually takes more than 8 hours to change, so it is best to bring an extra mask when you go out. Finally, when you buy masks, you must pay attention to buying them from regular manufacturers. There are many masks on the market that do not meet the national standards. Unqualified masks not only fail to achieve protective effect, but also may have an impact on health. Therefore, it is best to buy masks that meet national standards.

In addition to wearing a mask correctly, it also needs proper maintenance.

When removing the mask, it is best to hold the mask strap with one hand, and do not directly touch the inside and outside of the mask. If it is a disposable mask, it is best to put it in a bag and throw it in the trash can. If it is a N95 reusable mask, it is best to hang it in a dry and ventilated place.

Finally, I would like to remind you that the service life of masks should not be too long, especially disposable masks can not be reused. N95 mask can be used repeatedly, but not more than 5 times. If it is found that the mask is damaged, dirty and the respiratory resistance increases, it is best to give up using it.