For recirculation operation, can be combined with wall chimneys, significantly improved odor removal compared to conventional recirculation filter systems, noise reduction, multiple regenerable CleanAir activated carbon filter, integrated design (integrated CleanAir module is not visibly mounted inside the chimney, flexible installation at different heights possible), consisting of multiple regenerable CleanAir activated carbon filter, filter holder, flexible hose, 2 hose clamps and fastening material
