There may be several problems with high flue noise: \x0d\ 1. The exhaust pipe connected to the range hood is too long, and the exhaust pipe vibrates when others use the range hood; \x0d\2。 The connection between the range hood and the smoke exhaust pipe is not firmly fixed; \x0d\3。 The range hood vibrates itself as soon as it is turned on; \x0d\4。 The smoke pipe of someone else's range hood vibrates to transmit sound. \x0d\ Solution: Choose a thick smoke exhaust pipe, which is fixedly connected with the smoke exhaust pipe of the range hood, and wrap it tightly with fireproof cotton at the intersection of the smoke exhaust pipe and the building flue. If it is the noise from someone else's smoke exhaust pipe, after investigation, you can suggest that your neighbors do the same. After all, helping neighbors eliminate noise is also helping themselves.