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andreyf
on Aug 9, 2021
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Scientist says cleaning indoor air could make us h...
Those are subjective but there's a good paper on accuracy here
https://www.sciencedirect.com/science/article/pii/S036013232...
!
tldr for CO2 best is
https://www.kaiterra.com/en/laser-egg-co2
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tldr for CO2 best is https://www.kaiterra.com/en/laser-egg-co2