Unlike the Japanese, cleaning is not an enjoyable activity for most Americans. Many people are busy with work, have kids to take care of, and are also expected to show up for a couple of friends.

In recent years, Greek shipowner Safe Bulkers has retrofitted Alfa Laval PureSOx exhaust gas cleaning systems on 20 of its bulk carriers. The company has just installed its 21st PureSOx scrubber, and ...