How to turn off the exhaust fan in the hotel? It's very noisy.

The ventilation fan and central air conditioning in the hotel are unified. These two things will have a switch button, and there will be a light switch next to the room card when you enter the door. The logo of the ventilator is a small fan. 1. For the small coup to reduce the noise of the fan, you can change the mute fan. Users can consider replacing the mute fan, which not only maintains the original performance, but also reduces the noise and improves the quality and use sense of the product. 2. Secondly, clean the dust of the cooling fan regularly. First, find the dust on the fan blade and clean it with a soft brush. After the cleaning work is completed, the cooling fan can be resumed. 3. For the power supply, it is not only the connection between the cooling fan and the power supply, but also the connection between the power supply and the chassis. In addition to firm fixation, buffers such as thin cloth and rubber pad can also be added at the contact position. 4. It can be adjusted in BIOS or graphics console (motherboard support is required). You can also use a fan governor. However, this method will reduce the heat dissipation performance to some extent.