Poor air quality can cause tiredness and impaired concentration. To avoid this, regular airing is important. Many people prefer natural ventilation, i.e. fresh air from direct openings to the outside, such as windows. However, using windows to ventilate a room poses other problems that affect a person’s well-being. A particular problem is external noise, which is perceived very differently by the individual. The aim of personalized window control is therefore to open and close windows automatically to suit the user's needs. First and foremost, individual noise perception is taken into account. However, factors such as a comfortable temperature, the time of day, the weather and indoor air quality also play a role.