The bathroom window is closed, but there s still wind?

Doors and windows are closed. But there is still rumor. Explain that your windows are too breathable.

There are two reasons for this:

The sewer pipe in the bathroom is not soundproofed, and you will feel the wind when you flush the toilet.

It is also possible that the wind comes in from the exhaust vent.

Generally, there is the sound of running water on low floors, and the sound of wind on high floors is especially obvious. It is recommended to do a good job of sound insulation.

The windows should not be tightly sealed, and there should be gaps between the windows, so that you can hear the wind.

It may be caused by air leakage in your window, or it is caused by air leakage in the glass, and you have to put the glass again, and it may be good to apply the tape.

The bathroom window is closed, but there is still the sound of wind, indicating that there is a gap in the window so the wind blows in.

I may be making the wind inside the window crack.

Maybe the sealing effect is not good, try to make glass glue from the new, it should have an effect.

Maybe the airtightness of the window is a little worse, you can check whether the window is tightly closed.