Airing
Airing an indoor space means bringing fresh air into a closed area. This helps to purify the air and eliminate moisture, preventing condensation issues.
To avoid humidity problems, an appropriate ventilation/air exchange system facilitates the flow of air between the interior and the exterior. This could include a window, ventilation ducts, or a VMC system.
It's recommended to ventilate your home for at least 10 minutes per day.
If you are unable to ventilate regularly, such as in a second home, a connected dehumidifier can effectively solve humidity problems.