KN95 face mask is very necessary

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Usage:

1. Confirm the front and back, wear the ear hanger;2. Close to the face, pull back the mask to completely cover the nose and chin;3. Press on the bridge of the nose and press on both cheeks from the bridge of the nose.

Precautions:



1. It is strictly prohibited to use after the package is damaged;2. The production date and validity period shall be shown in the seal of the package or the bag's qualification certificate.

Storage conditions:

Temperature(-30℃~+40℃), humidity(＜80%), avoid direct sunshine.Source：https://www.unisourcesgroup.com/Daily_use/

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