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A comment on Two young scientists built a $250M business using yeast to clean up wastewater. Parent comment

Re:Two young scientists built a $250M business using yeast t... by verall on Monday July 06, 2020 @07:38PM (#23754017)
I really don't know how people think these are safe, I have a "ozone-free" UVC disinfectant light and it still produces enough ozone to smell pretty bad. I can only imagine how an O3 generator smells.
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