1) Airing out rooms: a preventive measure
First of all, to ward off the formation of mold, make sure to air the rooms in your house often, even for a few minutes a day. The temperature should be stable and it is advisable to keep the windows closed in case of rain. Also, it is good to leave a small space between walls and furniture, such as 2 cm, and avoid carpets if the house is already damp in itself.