Why is Larry Weiss fascinated with hygiene? Well, he believes that it is a human engineering problem that society has attempted to solve chemically, with poor results. So, instead of fighting a losing battle trying to convince people about this, he is working to produce a non-toxic alternative to common cleaning products. Find out the whole story in our exclusive interview with him.

Larry’s talk is the latest installment in our Fascination series of interviews with notable scientists and technologists, sponsored by Dow Chemical.