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A comment on The health benefits of better air. Parent comment

Re:The health benefits of better air by scotty79 on Wednesday April 28, 2021 @03:22AM (#26966678)
That's weird. I can easily get CO2 levels way below 800 with windows closed, just not completely sealed.

And then air purifier can keep PM2.5 levels below 10 on the lowest setting while outside is above 30

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Re:The health benefits of better air by colechristensen on Wednesday April 28, 2021 @03:31AM (#26966733)
What kind of home do you live in? I think a lot of the new construction is sealed very well and there are few leaks besides the actual interfaces.
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Re:The health benefits of better air by scotty79 on Wednesday April 28, 2021 @03:38AM (#26966777)
Block of flats. Apartment is fairly well sealed. If I seal the windows I can drive up CO2 levels to 1500. I have plastic windows with seals that have "unsealed" mode. In this mode window is just barely opened. Like 1mm gap between a window and a frame.

And one window cracked like that is enough to drop CO2 levels below 800 while there's one person in the apartment.

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