A viral TikTok is showing people how bacteria can spread after using hot hand dryers in comparison to letting your hands air dry after washing them in a public bathroom.
Bacteria buildup can also be a result of other people contaminating the dryers, she explained.
"Someone may have washed their hands for not enough time to effectively remove all concerning microbes. Then, if this person touches the area where the diffuser is present, there could be a transfer of the microbes onto the dryer that could then be dispersed onto the next user," Susky said. In 2018, a study from the University of Connecticut found hand dryers in public restrooms blew bacteria as well as fecal matter onto hands.
A TikTok user who appears to work in a laboratory has gone viral after revealing the amount of bacteria that is produced by hand dryers in public bathrooms. The study, published in the Applied and Environmental Microbiology Journal, said scientists came to the conclusion after placing data-gathering plates under hand dryers in 36 bathrooms located on the University of Connecticut’s campus,The researchers said they placed the plates under the dryers for about 30 seconds and found"between 18 and 60 different colonies of bacteria on each plate.
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