The problem with the range hood is that the exhaust capacity of the public chimneys connected to the community has become much worse. My home is on the second floor. How to improve this exhaust capaci

The problem with the range hood is that the exhaust capacity of the public chimneys connected to the community has become much worse. My home is on the second floor. How to improve this exhaust capacity? I'll teach you a method. Generally, the public flue of a building has two floors, which are divided into the main flue and the auxiliary flue, with an asbestos fiber cement board in the middle. As long as the partition (diameter 15cm) between the main flue and the auxiliary flue is opened with a small hammer, the problem you mentioned can be solved.

Principle: The air outlet of the range hood is too close to the above partition, which leads to excessive wind resistance and affects normal smoke exhaust. The purpose of designing the main and auxiliary flue is to prevent the flue from smelling (returning smoke), but now many unscrupulous builders make the flue specifications too small, which often leads to the problems you mentioned.