Residential buildings on the first two floors can open a restaurant. Many residential buildings on the first and second floors are restaurants, hot pots, teahouses and so on. Only the state and the Administration for Industry and Commerce has relevant regulations, these practice units in the health license to ensure that the solution to the noise \ ventilation \ fumes and other issues.
My approach is: direct piping to the roof of the relevant things, without disputes with the residents. No one came to me to trouble ah.