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The exhaust fan in the bathroom is generally fixed on the ceiling and then connected to the main exhaust duct of the bathroom in the building through pipes. That's basically what you do. The same is true for exhaust fans with integrated ceilings. Hope it helps!
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If there is a gap between the fixing frame and the wall, it is easier to fix it with a foaming agent, and then do other treatments.
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There is only one bellows.
Exhaust fan and a metal decorative cover.
How to install.
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There should be a small fixed piece behind something, if it were me, it would be glued directly with glass glue.
Toilet exhaust fans are generally installed on the wall, depending on the situation. Can be installed on windows or even glass. >>>More
Steps to install the exhaust fan:
1. Reserve or open a hole for an exhaust fan. >>>More
In this case, it may be that the installation was reversed. Take it off and reinstall it.
Hello dear <> my answer is as follows, please be patient and take a look at the <> >>>More
If it is a ceiling ventilation fan, it is generally left in the wall, and the pipe is not buried, because the exhaust pipe is DN100 and cannot be buried. >>>More