Ventilation of one's villa is an absolutely essential tool to keep both the villa and the occupants healthy. If you do not ventilate once in a while, there is a risk that mold will form or that the radon concentration will be too high. Both are something that can lead to health discomfort.
By installing a ventilation system, it becomes easy to get rid of this. It will continuously extract the "old" air on a daily basis and send in fresh outdoor air. First, however, it makes sure that it is clean air that enters. This means that it is filtered for dust, pollen, etc .. In addition, the system will also heat the air, so that in this way you do not lose heat, and thus you can also save a little on the heating bill.