The transmission of new coronavirus through respiratory droplets is the main way of transmission, and can also be transmitted through contact.
According to the current epidemiological characteristics, 40-60-year-old patients are more common, mainly male, children have already suffered from the disease, people are generally susceptible, for the elderly over 60 years old, there are basic diseases (such as kidney disease, diabetes, lung disease, etc.)
Non-woven face mask, surgical mask and medical mask is an important defense line to prevent respiratory infectious diseases, and can reduce the risk of new coronavirus infection. Face masks can not only prevent the patient from spraying droplets, reduce the amount and speed of the droplets, but also block the droplets containing virus and prevent the wearer from inhaling.
1. Disposable medical mask: it is recommended to be used by the public in non crowded public places.
2. Medical surgical mask: the protective effect is better than disposable medical mask. It is recommended to wear it during the on-the-job period for suspected cases, public transport department and passengers, taxi drivers, sanitation workers, service personnel in public places, etc.
3. KN95 / N95 and above particulate protective mask: the protective effect is better than that of medical surgical mask and disposable medical mask. It is recommended to use it by field investigation, sampling and testing personnel. The public can also wear it in highly crowded places or closed public places.
4. Medical protective mask: it is recommended to be worn by medical staff in fever clinic, isolation ward and confirmed patients when they are transferred.