Tuesday, 14 August, 2018

Hand dryers in the loo spraying bacteria on your hands

Study shows bathroom hand dryers spray fecal particles onto hands Hand dryers in the loo spraying bacteria on your hands
Anna Jefferson | 13 April, 2018, 01:58

Electric hot hand dryers disperse this fecal matter on to wet hands and into the air.

American scientists have concluded that hand dryers are the breeding grounds of harmful microorganisms.

The plates that were exposed to hand dryer air for 30 seconds collected approximately 18 to 60 colonies of bacteria, while the plates that were simply placed in a bathroom while a fan restributed air for 20 minutes collected an average of 15 to 20 colonies of bacteria.

Hand dryers suck up bathroom air and spew it out at speed. Convection created by a hand dryer's air streams, for example, might pull in unfiltered bathroom air.

The research adds to a growing body of evidence showing that hot-air hand dryers have a role in the spread of bacteria-safe and potentially unsafe. These results indicate that many kinds of bacteria, including potential pathogens and spores, can be deposited on hands exposed to bathroom hand dryers, and that spores could be dispersed throughout buildings and deposited on hands by hand dryers.

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The study found that restrooms with hand dryers had up to 254 bacterial pathogens present.

For now, Setlow is sticking to paper towels-as is the University of CT, which has added them to all 36 bathrooms surveyed in the study. In fact, the University of Connecticut's School of Medicine even started to stock paper towels in its facilities.

The scientists also explored the effectiveness of using high-efficiency particulate air filters with the hand dryers.

So how can you avoid the bacteria?

If that makes you feel any better.

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