Free filter. Completely automatic. No more clogged filters, as the automatic main filter cleaning Autoclean (AC) keeps the filter clear and ensures consistently high suction power. The Cleantec CTM 36 AC, with a container volume of 36 liters, offers ample volume with high flexibility due to its generous container geometry. Equipped with swivel casters and rear wheels for ideal mobility, along with a parking brake that ensures stability on any surface as well as during transport. The fully integrated flat filter in the vacuum head ensures maximum volume utilization: thus, the gross container volume and net volume are nearly identical. The extremely compact high-performance turbine delivers the corresponding suction power. With an airflow of 3900 l/min, nothing is left behind except pure air. Approved for dust class M.