2. In terms of hygiene, the impact will be less, because it can be eliminated by spraying some air fresheners. But bacteria are not well controlled! Even if the whole toilet environment looks clean, the bacteria in it exceed the standard. We can't sterilize with pasteurized water every day! If it is not closed, the bacteria inside can easily be taken outside and endanger our health. Therefore, in terms of safety and hygiene, I suggest you talk about this toilet door strap.
The last reason is that the environment inside the bathroom is different from other indoor environments. The humidity in the bathroom is very high Without the help of purifier and exhaust fan, the internal air circulation is weak, so the moisture is not easy to be evacuated. In this way, the outdoor dry air will also infect the room, causing the indoor environment to deteriorate. Therefore, it is recommended that you mop the floor in time after going to the toilet, or directly turn on the exhaust fan to exhaust moisture. According to the above analysis, the bathroom door should be closed and the window should be opened.