To prevent mold growth indoors, there are simple rules and aids.
Living areas 3-5 times daily for about 5 minutes Shock = ventilation simultaneous airing of several rooms for an effective air exchange in the home.
Ventilation through windows in tilt leads to unnecessary heat energy losses! Lintels cool in winter from strong, which promotes unwanted condensation in this area.
Make larger pieces of furniture not to cold outside walls. If this is not possible then to allow a distance of 5-10 cm from the walls, an air circulation.
Keep doors closed in rooms with high humidity or development with particularly low temperature. Ventilate these rooms with the doors closed until the room humidity has dissipated.
In a basement can cause mold problems in contrast to above-ground parts of the building in the summer when warm, moist outside air condensing on the cold walls. In summer basements must therefore be aired very deliberate.