Study shows bathroom hand dryers spray fecal particles onto hands

Study shows bathroom hand dryers spray fecal particles onto hands

You know, they're the little boxes near the sink that you use to dry yours hands when you've washed them after going to the toilet.

Scientists comparing normal bathroom air to that blasted from hand dryer nozzles have found far more bacterial colonies develop in samples exposed to the latter. How many bacteria in the apparatus that the researchers suggest to wipe his hands with a towel, reports the Chronicle.info with reference to the news of Yu.

The independent study took place at the University of Connecticut School of Medicine. Unlike other types of B. subtilis often found in soil, this strain is only found in laboratory environments.

Researchers say this can cause people to leave bathrooms with potential pathogens on their hands, which can be dispersed throughout buildings. While the study mainly looked for the lab-engineered bacteria, observation did show that pathogens like Staphylococcus aureus, which can cause skin infections, pneumonia, and sepsis, also were found in the bathrooms.

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Paper towels or the electric hand dryer?

Using a HEPA filter on the hand dryers reduced the bacteria by 75 percent, the study showed. Although that's a lot, it certainly isn't flawless.

Research has shown that putting the toilet lid down before flushing will reduce airborne bacteria but, in public bathrooms, you can not guarantee that this is always being done, so it is desirable to avoid spreading it further.

"Perhaps the filters weren't working properly, or the large air column below the hand dryers was sucking in bacteria from unfiltered air adjacent to the forced air column", Setlow, who is a professor at the University of CT, explained.

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