- THE MAGAZINE
"Clean is a condition free from unwanted matter that has the potential to cause undesirable effects," Berry explained. "Cleaning is the fundamental management process of putting unwanted matter in its proper place to achieve a clean condition. And cleaning science explains how cleaning works and why it is effective."
A PhD in public health, Berry spent over 27 years with the EPA. He is the author of Protecting the Built Environment: Cleaning for Health, and now serves as the chairman of the Science Advisory Council for the Cleaning Industry Research Institute.