Don’t do this after wearing a mask, otherwise don’t complain about its quality

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Recently, a research that published on found that the coronavirus can survive on the outer layer of mask for 7 days [1]. This is a huge caution to our daily personal protection during this pandemic.

This new coronavirus mainly transmitted through droplet and contact. Your mask helps you keep the droplet out. But you may still be infected through contact.

Remember, do not touch the outer layer of the mask that is being used or used!

Because the touching will contaminate your hand, and if you touch your face, eyes, nose or mouth, you may be infected. The researcher said, this result showed, wearing and taking off mask correctly were very important.

The research also found that the coronavirus was more stable on smooth surfaces. The virus can still be detected on the surface of stainless steel and plastic after 4 days. And the experiment result showed that the virus can survive on the banknote for 2 days.[1]

We recommend,

  1. Wash hands frequently, don’t touch your face, eyes, nose and mouth before cleaning.
  2. Don’t touch anything in public if unnecessary.
  3. Disinfect the household items regularly.

Last, don’t touch the outer layer of the mask, otherwise, don’t complain about its quality if you are injected.

[1] Stability of SARS-CoV-2 in different environmental conditions, THE LANCET, from

When should we wear face masks?

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When should we wear face masks?

According to the present situation of COVID-19 and other respiratory infectious diseases, we should wear masks in one of the following circumstances:

  1. When having fever, cough and other suspicious symptoms.
  2. In high-risk areas, such as hospitals, patients’/suspected patients‘/close contacts’ home, animals trading markets, and poorly ventilated places.
  3. When coming into contact with (1)patients with fever or cough; (2)suspected/confirmed cases of infectious diseases; (3)people from the epidemic-affected areas; (4)animals, especially birds and wild animals.
  4. In poorly ventilated places where people gather together, such as conference rooms, enclosed office rooms, elevators and other small spaces.
  5. In crowded public areas, such as shopping centers, theatres, markets, restaurants, supermarkets, etc.
  6. When taking public transport (subways, buses, railway, planes, taxis).
  7. Close contacts and people from the epidemic-affected areas should wear masks during their home quarantine.
  8. In places where, after careful assessment, the risk of transmission exists.

When can we take off the masks?

  1. In vast outdoor environment, such as parks, scenic spots and streets with few people, or when working in the countryside.
  2. In a well-ventilated environment.
  3. In family life.
  4. When being alone in the office, storage room, etc.
  5. When driving a private automobile alone, or riding in a private automobile with healthy family members and friends.
  6. When doing outdoor sports, such as running, mountaineering, playing basketball and soccer.
  7. Children under one year old are not recommended to wear masks due to the potential risk of suffocation.
  8. In other circumstances where the risk of infection is very low.