l Wearing a mask correctly can effectively prevent the spread of the virus. Masks form a physical barrier around the wearer's mouth and nose, isolate potential pollutants in the surrounding environment, and effectively filter visible harmful substances such as droplets and dust. Different masks have different uses and different wearing comfort levels.
l Three layers of protection, efficient filtration;
l Plastic nose bridge strip, comfortable to wear, the ear straps are highly elastic and not tight;
l Medical staff working in general outpatient clinics and wards;
l Staff in relatively closed places such as hospitals, airports, railway stations, supermarkets, restaurants, etc.;
l Those who are engaged in administrative management, police, security, courier, etc. related to the epidemic, and those who are isolated at home and living with them are all medium-risk exposed persons;
l Public, indoor office environment, and patients in medical institutions (except fever clinics) in crowded areas such as supermarkets, shopping malls, transportation vehicles, and elevators;
l Children in kindergartens and school students who focus on learning and activities belong to people with lower risk exposure.