Legal analysis: according to China's laws, residential basement without a flue, shall not be done to produce fumes of food and beverage projects. Emission of oil smoke catering service operators should install oil smoke purification facilities and maintain normal use, or take other oil smoke purification measures, so that the oil smoke discharge standards, and prevent pollution of the normal living environment of nearby residents. It is prohibited to build, reconstruct or expand new food and beverage service projects that produce oily smoke, odor and exhaust gas in residential buildings, commercial and residential complexes that are not equipped with a dedicated flue, and in commercial and residential complexes that have commercial floors adjacent to the residential floors.

Legal basis: "The Chinese People's **** and the State Air Pollution Prevention and Control Law" Article 81 of the fumes emitted by the catering service operators shall install fume purification facilities and keep them in normal use, or to take other fume purification measures, so that fumes meet the standards for emissions, and to prevent pollution of the normal living environment of the residents in the vicinity. It is prohibited to build, reconstruct or expand new food and beverage service projects that produce oily smoke, odor and exhaust gas in residential buildings, commercial and residential complexes that have not been equipped with a dedicated flue, and in commercial and residential complexes that have commercial floors adjacent to the residential floors. No unit or individual shall barbecue food in the open air in areas prohibited by the local people's government or provide sites for barbecuing food in the open air.