Regarding the correct use of masks, He Xiong said that in terms of types of masks, ordinary non-professionals use ordinary medical masks, which are also commonly known as disposable medical masks. Relatively professional, such as hospitals, disease control personnel use medical surgical masks. Laboratory staff and doctors who rescue patients should use medical surgical masks, which have splash-proof function. There is also the N95 mask that we often say, which is not recommended by the general public. Because its ventilation effect is not as good as that of medical masks, there is no need to cause new waste in price.
If you need to be in contact with people because of your work, you should wear a mask even if it is necessary outdoors, such as a bus salesman and a traffic policeman. When living indoors, healthy people also need to wear masks when living with people who may be at risk. "But if there is no similar situation, you can make an assessment without wearing a mask."
Precautions for choosing a mask:
If you choose a protective mask, you should pay attention to kN95 mask and N95 mask, both of which have breathing valves, but not breathing valves. The one-way breathing valve protective mask has small breathing resistance, can quickly exhaust the hot and humid gas in the mask, and has good comfort. But for infected people, pathogenic microorganisms will still be exhaled, posing a threat to the body.
People with symptoms of respiratory infection, such as sore throat, runny nose, cough or fever, should not wear this mask. Novel coronavirus is mainly transmitted by contact and respiratory droplets. In fact, in ventilated places or outdoors, you can consider not using masks. We must master the correct use of masks. Reusing contaminated masks, not paying attention to hand hygiene and not using masks with appropriate air tightness will increase the risk of infection.