The Prima Klima ECO K2600 FLAT activated carbon filter with a diameter of 125 mm and a height of 135 mm is ideal for air flows of up to 250 m3/h. This filter can handle a maximum air temperature of 70 °C and provides clean air in just three simple steps. The calculations are based on the air exchange in the room once per minute. For example, a room measuring 3 mx 4 m and with a ceiling height of 2 m requires an air exchange of 24 m3 per hour.