Is it against the rules to sell respirators on salted fish

Hello, are you asking if it's against the rules to sell respirators on Saltfish? It is a violation of the law to sell respirators on salted fish. The ventilator belongs to the medical equipment, medical equipment business needs to have the relevant documents approved by the state, recycling, resale of this kind of for-profit behavior are not legal. Idle fish is a community-based second-hand idle trading market, second-hand resale of respiratory machines is not legal, that is, illegal.