The final component of the patented WSN10 technology is thermal sterilization. It is used for the final sterilization of the air before it is discharged to the outside again. In the process, the air inside is heated to over 200°C. At the same time, this function helps to keep the temperature in the room at a healthy level, thus slowing down or completely stopping the multiplication and spread of mould spores and fungi (e.g. in gaps between wallpaper and brickwork) .