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Now if you can't get to a sink, hand sanitizer is better than nothing.
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But how much, how long and what kind.
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Here's what the scientists at the University of Florida say to be most effective, a dime sized dollop of alcohol gel should be rubbed into the hands for 30 seconds.
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If hands are dry after only 10 or 15 seconds, it's likely not enough sanitizer was used.
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30 seconds is a long time to rub your hands dry, and I want to show you exactly how long 30 seconds is.
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So we're going to put a clock on the screen to show you while I talk about alcohol content.
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The packaging should tell you how much alcohol is in the gel, and the experts say the higher the better.
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Though the sweet spot is between 60 and 95% alcohol, they warn that the higher concentrations are actually not as effective. 00:00:59.740 --> 00:01:4.850 That's because there needs to be a little bit of water in there to cause the reaction that kills bacteria. 00:01:5.120 --> 00:01:6.160 And here we are, right. 00:01:6.160 --> 00:01:9.150 At 30 seconds, my hands should finally be dry. 00:01:9.350 --> 00:01:10.550 It's along 30 seconds.
