In a home, you should bring in fresh air in the rooms where people stay regularly and for a longer period of time (such as bedrooms and living rooms), while the air in areas where you stay for a short time can flow through from the other rooms.
Air from areas with the highest levels of pollutants, such as kitchens, bathrooms and other wet rooms, should be removed.
In a home, it is particularly important to ventilate the moisture that we humans generate. For example, where we shower, dry clothes or cook, the air needs to be replaced much more often than every half hour. Prolonged high humidity leads to mould, which is hazardous to health and damages the house.
Balanced ventilation
Today's demands for comfort, health and energy consumption mean that more and more homes are being built with exhaust and supply air ventilation with heat recovery.
Ventilation-controlled exhaust ventilation
Central extraction systems became common in new homes in the 1970s. A typical This is the most common in apartment blocks from the 1960s onwards. Unheated fresh air is drawn into the apartment via openings in the exterior walls, which can cause draughts and intake of particles from the outside air.
Natural ventilation
The oldest form of ventilation and common in older apartment blocks. Unheated fresh air is sucked into the apartment via openings in the exterior walls, which can cause draughts and particles. Self-sufficient ventilation provides more air the colder it is outside. In summer, self-sufficiency basically provides no airflow.
