Want to dry your hands but keep them clean after you’ve washed them? Those hot air hand dryers in bathrooms may be blowing it. And by it, I mean bacteria and other gunk.
Yet, another study is conjuring up visions of a swirling cyclone of bacteria and other microbes. For a study recently published in Applied and Environmental Microbiology, a team from the University of Connecticut Health (Luz del Carmen Huesca-Espitia, Gabrielle Joseph, Jaber Aslanzadeh, and Peter Setlow) and Quinnipiac University (Richard Feinn and Thomas S. Murray) brought bacteria culture plates into 36 men’s and women’s bathrooms in an academic health center and exposed these culture plates to the air blown from the hot air driers for 30 seconds.
After this exposure, an average of 18 to 60 colonies of bacteria grew per plate. This included colonies of
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