prevention of the novel coronavirus,
Wear a mask, wash your hands frequently, and ventilate more
Are very effective means.
so
How long do I wear a mask? How to wear it?
How to store? How to pick it?

Wearing a mask will also encounter many problems,
How to solve it?
Dear caring people
Please wear a mask correctly to ensure safe travel.
Source: Healthy Zhejiang, CCTV News
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Isolate the virus does not isolate love, these "dry goods" are very practical, please put away Oh ~