The University of Louisville Hospital has a unique robot simulator named Puff Daddy that can show doctors and patients how germs can spread through a simple cough. Puff Daddy spews out a vapor-like substance of “germs” when it coughs and when a black light is turned on, the germs glow and show just how far that one cough has spread.

Puff Daddy’s main goal is to teach doctor’s how better stop the spread of airborne diseases like swine flu which can be spread from person to person by a sneeze or a cough.