2. Then check the anti-counterfeiting mark of the mask, which is generally outside the mask package, as shown in the figure.
3. If you look sideways at the anti-counterfeiting logo of the real mask, you can find that the anti-counterfeiting logo will change color, but the fake one will not.
Secondly, when we carefully observe the real mask, we can find that there will be a small sticker in each mask.
5, and the fake mask has no such sticker at all, which is very easy to distinguish.
6. Finally, the steel seal of the real mask is deep, and the fake steel seal is shallow.