Knowledge
KNOWLEDGE
How long is it better to use disposable masks? After using the masks, please put them in a clean envelope, and fold them close to your nose and mouth when storing them, and avoid slipping into your pocket or hanging on your neck .
In addition, it should be noted that disposable masks must be used within the validity period. The expired ones should not be used. It can only be used once and must be destroyed after use. If the packaging is found to be damaged at the time of purchase, it must not be purchased or used. When purchasing, please pay attention to its production date and make sure to purchase the product for production in the near future.
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