Wärtsilä said its new inline scrubber system is designed to offer notable benefits over conventional exhaust gas cleaning systems, and its compact form saves considerable space, which is particularly important in smaller vessels and when being retrofitted, while the lower cost structure of the new design offers CAPEX advantages. With just one scrubber system per engine, installation is faster and easier, Wärtsilä said, which consequently reduces the out-of-service time for the vessel. Operational flexibility is also improved.