For the calculation of the air humidity, sources of humidity must be known. On the one hand, these are the persons already recorded for the heat emission (see person profile). These are automatically taken into account and need not be entered here.
The outside air exchange can reduce the indoor air humidity or, in humid weather, increase it. This is defined either in the ventilation profile or in the ventilation systems profile. Finally, cooling can extract moisture from the air if it condenses on the cold output.