Legal analysis: residential basement without flue, not allowed to do the fume-producing food and beverage projects. The People's Republic of China *** and the State Law on Prevention and Control of Air Pollution, Article 81: The operator of the catering services emitting fumes shall install fume purification facilities and maintain normal use, or take other fume purification measures, so that the fumes meet the standards for emissions, and to 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 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 or provide a site for barbecuing food in the open air in areas prohibited by the local people's government.

Legal basis: "People's Republic of China *** and the State Law on Prevention and Control of Air Pollution" Article 81 The food service operators emitting oil smoke shall install oil smoke purification facilities and keep them in normal use, or take other oil smoke purification measures, so that the oil smoke meets the standards of discharge, 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 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.