We have placed great value on functionality and also want to ensure comfort while using the AIR CUBE. For this reason, the integrated fans work particularly quietly. The fans move an air volume of XXX liters per minute and are mounted vertically to the airflow. As a result, they only build up little resistance, which leads to particularly quiet operation. Commercially available fans develop an operating volume of XXX decibels, while our AIR CUBE is audibly quieter: at only XXX decibels, it is one of the quietest devices on the market.