Ventilation fans are mainly used in bathrooms. In fact, the ventilator is an important facility in the home, which is not only used in the bathroom, but also can exchange fresh air with the outside world in some relatively closed spaces in the room. Otherwise, if the indoor air is not replaced, there will be many problems, which are not good for the health of the people who live.
It doesn't matter much if you look at the picture above your head, because it's a corner. If it is directly above the seat, it is not good. In addition to being easily affected by health, it is also easy to make mistakes in decision-making. It is recommended to look at the boss's character and put a feng shui evil thing to solve it!