Rumor identification: The mask does not mean it can resist the new coronavirus because it does not seep water. Rumor analysis: 1, non-N95 or medical surgical masks, even if they do not seep water, can not resist the spread of the new pneumonia virus. Because the new coronavirus spreads through droplets, and N95 masks and medical-surgical masks can prevent droplet transmission caused by splashing body fluids or blood from patients. However, because non-medical personnel mostly do not come into close contact with infected patients, wearing a medical surgical mask for protection is sufficient, while medical personnel wearing N95 masks can play a better protective role. 2, although the medical surgical mask can prevent new coronavirus infection, but if the mask is not worn in the correct way, there is still a great risk of infection. It is recommended to clean your hands before wearing the mask, and when wearing it, use both hands to press the metal strips on both sides of the bridge of the nose, so that the upper end of the mask is close to the bridge of the nose, and stretch the mask downward so that the mask does not leave wrinkles, which is conducive to playing the preventive role of the mask. Special note: When there is a shortage of medical protective masks, you can choose to comply with N95/KN95 and above standards for particulate protection. Any type of mask, the effect of protection is time-limited, must be replaced regularly, it is recommended to replace every 4 hours. If the mask is contaminated, it should be replaced immediately.