According to children's songs, the environmental protection network knows that the property has the right to require merchants to install chimney purifiers. Since June 65438+1 October1day, 2022, the Emission Standard for Cooking Fume (GB 18483-2020) has been officially implemented. All catering business units must install fume purification facilities, and ensure that the installed fume purification facilities run within the validity period. Newly built catering business premises, fume purification facilities should be designed, constructed and put into use at the same time as the main building.