The ventilation system of the hotel next door is very noisy.

The ventilation system of the hotel next door is very noisy.

In the process of preset, fabrication and installation of ventilation pipes, we can do a good job in noise reduction from the following three aspects:

First, reduce the sound source noise of ventilation pipes.

Second, the noise limitation of ventilation pipeline on transmission path

Third, protect and recuperate as soon as possible, check and protect regularly, replace easily damaged parts as soon as possible, and eliminate abnormalities so as to invent low-noise operating conditions.