Wanminfu fumigation instrument is not a pyramid scheme, but it is suspected of fraud. When law enforcement officers inspected a shop, more than 20 elderly people in the shop experienced the Wanfufu fumigation instrument. After investigation, Wanfufu fumigation instrument is a common product and has no therapeutic function. In order to publicize the function of this product, the party concerned made a publicity board. The content on the board is self-compiled and has no scientific basis. The false propaganda of ordinary products by the parties concerned has violated relevant laws and regulations, and the case is currently in the investigation stage.