(NEWSER) – Paper towels may not be the most environmentally friendly way to dry your hands, but they are the most hygienic. Australian scientist Cunrui Huang reviewed 12 studies on hand-drying, and found paper towels were the superior method in a public restroom, because they dry your hands more quickly than air dryers, and bacteria spreads more rapidly on wet hands, the AAPreports. "A hand dryer takes 30 seconds longer to achieve about the same dryness as a towel," says Huang. "This is important because most people spend less than 20 seconds drying their hands."
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