Hand dryers worse than paper towels for spreading germs

Scientists from the University of Leeds (UK) have discovered that airborne germ counts are 27 times higher around air dryers in comparison with the air around paper towel dispensers. Their study, published in theJournal of Hospital Infection, shows that both jet and warm air hand dryers spread bacteria into the air and onto users and those nearby.

To mimic hands that had been poorly washed, the research team contaminated the subjects’ hands with Lactobacillus , a harmless type of bacteria. The researchers then 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) of the Lactobacilli collected more than five minutes after drying ended. Lactobacilli were still detected in the air 15 minutes after hand drying.

“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. “Next time you dry your hands in a public toilet using an electric hand dryer, you may be spreading bacteria without knowing it. You may also be splattered with bugs from other people’s hands.”

Related:
Discuss this article in our forum
Plentiful poo traces confirm Brits’ aversion to handwashing
Hygiene Hypothesis linked to depression
Atmospheric analysis yields dog poop surprise

Source: University of Leeds

, , ,

Comments are closed.
Lodge Logic 10-1/4-Inch Cast-Iron Lid Black 1 Hand Wash Side Flange Skillet New
$26.02 Lodge Logic 10-1/4-Inch Cast-Iron Lid Black 1 Hand Wash Side Flange Skillet New picture
CHALKBOARD CANISTERS SET of 3 Ceramic Hand Wash Kitchen Storage Organization New
$63.21 CHALKBOARD CANISTERS SET of 3 Ceramic Hand Wash Kitchen Storage Organization New picture
100 Hand Picked & Washed Colorful Coquina Seashells from Sanibel Island FL
$10.95 100 Hand Picked & Washed Colorful Coquina Seashells from Sanibel Island FL picture
wash cup set Hand Washing Last water netilat Yadayim Pewter Jerusalem
$46.46 wash cup set Hand Washing Last water netilat Yadayim Pewter Jerusalem picture
1880s JAPAN Girl Washing Hands in Stone Basin PHOTO
$5.49 1880s JAPAN Girl Washing Hands in Stone Basin PHOTO picture

Powered by WordPress. Designed by WooThemes