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How to distinguish between true and false masks?
1, the inner nonwoven fabric used first is thinner and smoother, and the quality is not as good as the genuine one.
2. Then there are only 8 solder joints on the bridge of the nose, and there are 9 genuine ones.
3. Finally, a mask is a sanitary product, which refers to a device worn on the nose and mouth to filter the air entering the nose and mouth and prevent harmful gases, smells and droplets from entering and leaving the wearer's nose and mouth. It is made of gauze or paper.
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