Zehnder ComfoFresh air distribution systems bring fresh air to all rooms and simultaneously remove stale, moist, contaminated air and odours. Air is exchanged without draughts and bothersome noises, at the highest possible efficiency, thanks to displacement ventilation. The air volume can be individually adjusted. Zehnder ComfoFresh comes in the OnFloor (on the unfinished floor) and InFloor (in the unfinished floor) installation models.