1, there are different regulations on the difference between the purchase and sale of masks in different places, and there is no unified definition standard for whether the price of masks constitutes price fraud. 2. For example, the Hubei Provincial Market Supervision Bureau stipulates that during the first-level response period of public health, the price of medical commodities and protective disinfection commodities related to the epidemic situation shall not increase; There is no reference price for the goods sold. If the difference between purchase and sale exceeds 15%, it constitutes a price drive-up.

Legal basis:

Article 225 of the Criminal Law, whoever, in violation of state regulations, commits one of the following illegal business operations and disrupts the market order, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also, or shall only, be fined not less than one time but not more than five times the illegal income; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years, and shall also be fined not less than one time but not more than five times his illegal income or his property shall be confiscated: (1) dealing in franchise, monopoly goods or other commodities whose business is restricted by laws and administrative regulations without permission; (2) buying and selling import and export licenses, import and export certificates of origin and other business licenses or approval documents stipulated by laws and administrative regulations; (three) without the approval of the relevant competent departments of the state, illegally engaged in securities, futures, insurance business, or illegally engaged in fund payment and settlement business; (four) other illegal business activities that seriously disrupt the market order.