Many public restrooms have hand dryers instead of paper towels. Recent studies have found that these devices may actually be harmful to your health in several ways.
A study published in the journal Applied and Environmental Microbiology indicates that drying our hands with a hand dryer may actually be spreading germs.
When a lidless toilet flushes, a plume of fecal bacteria is shot up into the air. This, somewhat gross action is known as a “toilet plume.” The finding of the research indicated that air blasted “plates exposed to hand dyer air for 30 seconds averaged 18 to 60 colonies’plate.” The study concluded that there is evidence that bathroom hand dryers can disperse bacteria from hands or deposit bacteria on surfaces, including recently washed hands.
Apparently, the author of the study, Peter Setlow, now prefers paper towels, which are reportedly stocked in all 36 bathrooms used in the study.
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