The explosive power of hand dryers may be blasting bacteria and other nasty stuff infinitely further across the room than any other hand drying method.
A team of researchers from the University of Westminster deliberately exposed their hands to a harmless virus, in order to then dry them using a variety of methods. They experimented with paper towels, standard hot air hand dryers and the latest jet dryers - aka air-blades.
The result of the study was quite revealing. The jet air hand dryer blasted the virus a full ten-feet across the room while the hands were being dried. In the case of standard hot air hand dryers, the virus spread by 75cm, while paper towels led to the virus' spread of just 25cm.