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[–] 3 points 5 months ago (3 children)

Mine goes up to 2850 or so, even when I air out the room in the evening down to 430 or so.

But luckily no headache for me. I can't handle having the door open, I'm the last flatmate to get up in the morning.

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  • [–] 3 points 5 months ago (2 children)

    That…. Should be looked at because that’s not right.

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  • [–] 1 point 5 months ago* (1 child)

    Well there is no forced air. There isn't really any variables to have anyone look at. Short of sawing a hole in a wall, door or window.

    According to this calculater:

    • 400 ppm CO₂ in air would be about 0.72 g / m³
    • 3000 ppm CO₂ in air would be about 5.40 g / m³

    The room is about 20 m³ in volume. So in total that's 14.4 g to 108 g in a night. Ignoring any that diffuses under the door into the hallway, this would imply I breathe out 93.6 g of CO₂ in 8 h at rest.

    A common number I see online for adult humans is 1kg per day. Makes sense that a significantly higher than proportional part of that is during waking hours, so I expect quit a bit less than 300g at night. Seems pretty plausible to me all-in-all.

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