Hand dryers worse than paper towels for spreading germs

by
in science on (#PBJR)
Researchers have discovered that when hands are poorly washed airborne germ counts are 27 times higher around air dryers in comparison with the air around paper towel dispensers. This shows that both jet and warm air hand dryers spread bacteria into the air and onto users and those nearby. "These findings are important for understanding the ways in which bacteria spread, with the potential to transmit illness and disease," said Professor Mark Wilcox, who led the study.

Researchers collected air samples around the hand dryers and also at distances of one and two meters away. They found that air bacterial counts close to jet air dryers were 4.5 times higher than around warm air dryers and 27 times higher compared with the air when using paper towels. Next to the dryers, bacteria persisted in the air well beyond the 15 second hand-drying time, with approximately half (48 percent) collected more than five minutes after drying ended and still detected in the air 15 minutes after hand drying.

Re: "Discovered" ? (Score: 0)

by Anonymous Coward on 2015-10-04 23:52 (#PF1A)

When I was doing a biology class at high school (about 1990) we had to take swabs from any surface to see what would grow. I chose my teeth, and got the sample back a week later.

The teenage genius next to me asked "Don't you brush your teeth? Hurr hurr! Dirty teeth! Dirty teeth!"

This guy went on to work for the (not-United States) government...
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