Audio | Run Time: 30 Min. | Listen now...

Last fall, industrial cleaning equipment manufacturer Tennant Company unveiled the Ech2o, a machine that can scrub floors to a sparkle without using any toxic chemicals. In fact, all it uses is plain old water (really). In this SLM podcast we talk to Tennant CEO Chris Killingstad (pictured) and chief sustainability officer Stan Mierzejewski about the company's green-products push, its long history of environmental responsibility, and its plans for future innovations in the sustainability arena.