I think it is too hot in my apartment. What should I do?

You can always open windows and ventilate your home. Don't forget to turn off the radiators. The perception of a temperature is individual and depends on what we do. In fact, there is a difference of up to 2 degrees if you are standing up than if you are sitting down and resting. Regardless, you are of course always welcome to contact service notification if you feel it is too hot in your apartment.

See also information here with tips on how to think about the indoor climate on hot summer days.