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New evidence suggests electric hand dryers in public toilets pose health risk
Date:3/2/2009

A recent study by the University of Westminister found that electric hand dryers can dramatically increase the number of bacteria on people's hands after use. The shocking findings were found during a study in which they compared the numbers of bacteria on subjects' hands before and after they had washed and then dried them in a public washroom using either paper towels, a traditional warm air dryer or a new-style jet air dryer.

London (PRWEB) March 2, 2009 -- The electric hand dryers found in thousands of public toilets can dramatically increase the number of bacteria on people's hands after washing them and contaminate the washrooms where they are installed.

Scientists at the University of Westminster discovered the shocking findings during a study in which they compared the numbers of bacteria on subjects' hands before and after they had washed them and then dried them in a public washroom using either paper towels, a traditional warm air dryer or a new-style jet air dryer.

During their research, they discovered that:

  • after washing and drying hands with the warm air dryer, the total number of bacteria was found to increase on average on the finger pads by 194% and on the palms by 254%
  • drying with the jet air dryer resulted in an increase on average of the total number of bacteria on the finger pads by 42% and on the palms by 15%
  • after washing and drying hands with a paper towel, the total number of bacteria was reduced on average on the finger pads by up to 76% and on the palms by up to 77%.

The scientists also carried out tests to establish whether there was the potential for cross contamination of other washroom users and the washroom environment as a result of each type of drying method.

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Source: PRWeb
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