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Anonymous users2024-01-24Usually he only has two reasons, one is that his exhaust fan, that is, the ventilation fan, is broken, and the other is that the installation process is unreasonable. As a result, his productivity will be very low, very low. Or yes.
The whole space, you don't sew it very tightly. Resulting in a leak.
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Anonymous users2024-01-23Hello friend.
In this case, one is that your car fan is broken, and the other is that the pipeline is not working.
If it's turned off, it's always moving. Consider that the connection is short-circuited, and the noise is a problem with the fan, so find someone to repair it. Generally, I can't fix it myself).
This is probably the custom.
That's not how the performance is tested. >>>More
It depends on the type of room and location.
In general, the house will be reserved when it is designed and built. >>>More
According to the power of the exhaust fan:
Its power*24 1000 is the power consumption of a day. >>>More
The wind from the exhaust fan in the toilet blows on the clothes, and the clothes will become smelly.