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A comment on Scientist says cleaning indoor air could make us healthier and smarter. Parent comment

Re:Scientist says cleaning indoor air could make us healthie... by andreyf on Sunday August 08, 2021 @11:15PM (#28112417)
800ppm is "on the line" per what's industry recommended for an office http://www.energy.wsu.edu/documents/co2inbuildings.pdf
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