如果你还不知道。。。

昨天，无意中，看到一篇文章。版头是这样的

“Hand Dryers are full of hot air...and BACTERIA”

哦~ 很惊奇对吧。以下是来自报章的内容


Scientist at the University of Westminster discover the following shocking findings:

1. 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%

Use of a warm air hand dryer spread micro-organisms up to 0.25 metres from the
dryer


2. 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%

The jet air dryer, which blows air out of the unit at claimed speeds of 400 mph, was
capable of blowing micro-organisms from the hands and the unit and potentially contaminating other washroom users and the washroom environment up to 2 metres away


3. 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%.

Paper towels showed no significant spread of micro-organisms.

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