Kemper relaunched its CleanAir Tower ventilation system, optimizing the filter tower in terms of extraction capacity, plant safety, service life and design to protect employees in welding and cutting processes. The head of the filter tower has been redesigned. Extraction openings are no longer located circumferentially on the side, but in the cover of the general ventilation system. A new tornado principle at the head of the filter tower ensures contaminated air is drawn in with a high degree of efficiency. The system also ensures surrounding employees are effectively protected from welding fumes.