Currently, there are more than 48 million confirmed cases of new coronavirus infection worldwide, and the death toll has reached 270,000(source: https://www.jingdemedical.com). As the anti-epidemic work in various countries gradually deepens, asymptomatic or pre-symptomatic transmission is likely to be an important cause of the global epidemic of the new crown. I think wearing a mask can still be prevented.
Related content:
General Purpose Disposable Dust Masks
Disposable Blue Protective Face Mask
Disposable medical masks for children
Related content:
General Purpose Disposable Dust Masks
Disposable Blue Protective Face Mask
Disposable medical masks for children