Hand dryers worse than paper towels for spreading germs

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: Yes, but (Score: 1)

by pete@pipedot.org on 2015-10-04 12:42 (#PDSE)

but it showed that several minutes after drying your hands left you with the same levels, regardless of which method you used.
I wonder what the root of that is - the fact that soaps are meant to break free and rinse-off dirt and germs, versus actually killing the germs? Or that people who use jet dryers just suck at washing their hands, in general?
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The list tongue, underpants, dress, tooth and shark contains how many body parts?