Classification increases planning certainty for exhaust gas scrubber operators. The classification society DNV GL has certified the SAACKE exhaust gas scrubber based on soot separation using a dry process. This ensures that the innovative system, which was initially installed in 2013 on the tanker MT Levana, owned by the Carl Büttner shipping company, can now be operated without restriction. "Many scrubbers manufactured by market competitors currently operate with special permits. This means that the operator is exposed to the risk that the investment may not pay off.