There are mainly three query methods:

1. Check whether the certificate number is printed on the packaging box, whether there is a scannable barcode, and whether there is a steel seal on the mask bag. Production date/expiration date, if not, it is fake.

2. Check on the official websites of the Food and Drug Administration and the Quality Supervision Bureau whether the company has been successfully registered and whether it has passed quality testing. If it has not been registered and has not passed quality testing, it is fake.

3. Check the mask packaging to see if the manufacturing company, supervisory unit, production address, production license number and other details are clearly written on the packaging. If there is no such thing, it is fake.

Note:

1. Be sure to compare the product name and ingredients registered with the Food and Drug Administration to see if they are consistent

2. Check whether there is a registered trademark on the packaging box ?, and food safety mark QS