ELI5- what happens to the 1% of germs not killed by hand sanitizer?
In: Biology
It’s just a bit of covering their backsides. By claiming 99% that’s very nearly almost all. 100% would be too difficult to prove, so they can’t claim it. What if one germ survived? That’s not 100%, and therefore opens the company to the risk of making false claims or false advertising. By claiming 99% the risk of accusation if making false claims is much reduced.
It’s also why one famous bleach brand long claimed to kill 99% of all “known” germs. Can’t later be sued if the product doesn’t kill a germ that wasn’t previously known.
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