When the weather is sultry in summer, there is water everywhere in the house. Why?

Huangmei season is sultry and humid, with high air humidity and low air pressure. When the temperature difference between indoor and outdoor is large, the indoor and outdoor cold and warm air interact, and when the doors and windows are opened, water mist will form on the surface, which looks like water, and everything at home is very wet. In this season, you should try to avoid opening doors and windows for a long time, which can effectively prevent what you said. Only when the weather is clear and the atmospheric pressure is high can the doors and windows be opened for ventilation.