Why do masks prevent infection?

Don't look at a small mask, but it can play a great protective role. The mask is composed of non-woven fabric, melt-blown cloth, these special materials can not only prevent the outside harmful substances into the respiratory tract, but also to avoid their own sneezing, coughing, speech when the spray ran into the air. Studies have shown that as long as both parties wear masks and are more than 1 meter apart, the chance of infection is almost zero.

Second, how to wear a mask is the most correct?

Masks should cover the mouth, nose and chin, nose clip should be compacted, do not wear multiple masks at the same time, patients with basic respiratory diseases need to use protective masks under the guidance of doctors, infants under 3 years old should not wear masks, easy to cause suffocation, parents should try to avoid taking children to crowded public places.

Third, how long can the mask be used?

(1) The mask needs to be replaced after 4 hours of wearing, and the mask should be replaced in time when it is wet or stained;

(2) Hands should be cleaned before and after wearing;

(c) It is not recommended to reuse masks that have been used on cross-regional public transport, or in hospitals and other environments;

(4) If discomfort such as tightness or shortness of breath occurs while wearing a mask, go outside or in an open and ventilated place immediately to remove the mask.

4. How to store and remove masks?

(1) The mask should be placed in the original packaging bag or clean storage bag to avoid extrusion deformation;

(2) When taking the mask, remove the mask from both ears and try to avoid touching the outward side of the mask;

(C) Waste masks should be thrown into a dustbin with a lid, and wash hands in time.

Fifth, can the mask antistuffy "artifact" on the Internet be used?

Either way, try not to use it. On the one hand, these products lack targeted industry norms and standards, safety can not be guaranteed; On the other hand, after the use of these so-called "artifacts", the tightness of the mask will be affected, thus affecting the protective effect of the mask.

6. Are sunscreen masks useful?

It depends on the material. Masks made of gauze and other cloth cannot be used for medical protection. Masks that can be used for protection include disposable medical masks, disposable medical surgical masks or medical protective masks. If you take public transportation, or in poorly ventilated public places such as shopping malls and theaters, you should wear disposable medical masks or disposable surgical masks. If you have respiratory symptoms such as fever or cough, you should wear an N95 or a medical protective mask.

7. Where should I wear a mask?

(A) in shopping malls, supermarkets, cinemas, venues, exhibition halls, airports, wharves and public areas of hotels and other indoor crowded places;

(2) when taking a van elevator, plane, train, ship, coach, subway, bus and other means of public transport;

(3) in crowded outdoor places such as open-air squares, theaters, parks; When seeking medical treatment or accompanying a nurse in a hospital, taking body temperature examination, checking health code, registering itinerary information, etc.;

(4) nasal and pharyngeal discomfort, cough, sneezing, fever, etc.;

(5) When in a non-eating state in a restaurant or canteen.