Sunday December 17, 2017

Think it doesn't matter how you dry your hands? Think again.

In this segment of our occasional series "Think Again," Scientist Keith Redway compares hand-drying machines with paper towels. The results may surprise you.

In this segment of our occasional series "Think Again," Scientist Keith Redway compares hand-drying machines with paper towels. The results may surprise you. (Shutterstock)

Listen 10:33

We seldom think, let alone, think again about how we wash and dry our hands.

Keith Redway

Keith Redway, an Emeritus Fellow in the Department of Biomedical Sciences, University of Westminster, London.

Keith Redway, on the other hand, has been researching that topic for about two decades. He is an Emeritus Fellow in the Department of Biomedical Sciences, University of Westminster, London.

As part of our occasional series called "Think Again," he spoke to Michael about the differences between drying hands with paper towels, a warm-air dryer or a jet-air dryer. Which is more hygienic?

Click 'listen' above to hear the interview.