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A comment on Ask HN: How are you preparing for COVID-19 disruptions?. Parent comment

Re:Ask HN: How are you preparing for COVID-19 disruptions? by pmoriarty on Wednesday February 26, 2020 @07:20PM (#22429034)
Remember that light can only sterilize the surfaces it contacts. It can not sterilize beneath the surface.

So if droplets containing viruses penetrate beneath the surface of the mask, sterilization with light will not be able to reach them.

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Re:Ask HN: How are you preparing for COVID-19 disruptions? by drcode on Wednesday February 26, 2020 @10:24PM (#22430135)
Obviously something like this would only make sense under extreme circumstances, when you have to leave the house, but can't use a fresh mask every time, because of shortages.
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