Any tips on the best way to ventilate a unit shower/bath that you typically get in Japan? For years we’ve been leaving the window open after showering and running the fan 24 hours a day. It has seemed to be doing fine all this time. But my wife says she just read something that said we should keep the window closed at all times and only run the fan while we’re showering. Doesn’t make sense to me, but wondering if anyone else has heard/read that.
by Next_Tourist8493