Hello, now far away from the open area of the city, the smoke and oil smoke of chicken, barbecue, charcoal roast and other flavor diets are basically straight; Because people are increasingly pursuing original ecology and leisure, if these things are not very concentrated in the wild, the smoke will soon disperse; Those engaged in this kind of catering in urban areas should be equipped with corresponding fume collection and emission and fume purification facilities. You can refer to the design of the barbecue project, set a smoke collection hood above the firewood stove, and install a cooking fume purifier at the end (available online). In addition, the outdoor vent should keep a necessary sanitary protection distance from sensitive targets (residential buildings, schools, hospitals, etc.). ).