The hand dryer Petri dish showed different types of bacteria and fungus had grown, forming yellow spots, whereas the dish that was waved through the air was completely clear. At the end of the ...

Can hand dryers in public bathrooms spread diseases ... They may also blow around bathroom air that already has bacteria in it. Scientists are still looking into whether dryers tend to house ...

In an effort to lessen the impact his OCD has on the environment and his wallet, he decided to build an automated hot air hand dryer using a 555 timer, which doubles as his entry in the 555 Design ...