How To Distinguish The Front And Back Of Disposable Masks Of The Same Color
1. Whether the mask has LOGO, the LOGO is correctly written outwards, usually in the upper right corner (looking at the mask);
2. The metal strip is on the top. This is no doubt. Look at the number of layers of the metal strip, the single layer faces outwards, and the double layer faces inwards (the side of the single layer can clearly see the metal strips, and the few layers also cause protrusions. Reason, but it’s not intuitive and rigorous for me to write only protruding in the description), from the feeling of wearing
It is also consistent; do not judge based on the thread or the direction of the fold. Each family is different, and the thread and fold direction of the two-color mask are also different.
The editor feels that it is possible to check whether the two-color mask is in accordance with Article 2, so as to determine the outer and inner sides of the same color mask. Those who are interested can verify it. I hope it will help.
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