Timothy Taylor asks this important question:
After washing your hands with anti-microbial soap, is it better to dry them with a paper towel or with an air dryer?
After a review of 12 studies on the issue, he answers:
Basically, paper towels win out over regular air dryers, jet air dryers, and cloth rollers, at least in settings like health care provision where hygiene is especially important.
Removing water from hands after hand-washing is an important part of killing the germs.
Paper towels dry skin faster, help remove contamination through friction, and don’t risk spreading germs through the air.