• Naz@sh.itjust.works
    link
    fedilink
    arrow-up
    17
    ·
    3 days ago

    I have a CO² sensor. When I sleep with the door shut, the CO² climbs up to and levels out at >1800 ppm.

    I have a noticable headache the following day when I do this. I’ve tested it for nine days and now I’ve got a doorstop which prevents me from closing the door completely by accident or with drafts

      • SippyCup@lemmy.world
        link
        fedilink
        arrow-up
        29
        ·
        3 days ago

        That’s the most engineer ass answer I’ve ever seen.

        High Co2? Algae can solve that. How much… Well a vat should do, better make it two just in case.

        “Why yes, I do keep vats of algae in my bedroom why do you ask?”

        • teyrnon@sh.itjust.works
          link
          fedilink
          arrow-up
          2
          ·
          2 days ago

          There was research into algae to make fuel, started during the arab oil embargo, killed off by big oil, then exxon eco opted it and made sure it went no where and finally just killed it. But the national renewable energy laboratory has a bunch of strains at cost. The best strains mysteriously disappeared from the university of hawaii that is holding them.

      • usrtrv@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        4
        ·
        3 days ago

        You would need hundreds of houseplants to offset a single human’s CO2/provide enough O2.

        I’m not anti house plants, they have benefits, but a single plant will not make a meaningful oxygen difference.

    • Kazumara@discuss.tchncs.de
      link
      fedilink
      arrow-up
      3
      ·
      3 days ago

      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.

        • Kazumara@discuss.tchncs.de
          link
          fedilink
          arrow-up
          1
          ·
          2 days ago

          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.

    • Zink@programming.dev
      link
      fedilink
      arrow-up
      3
      ·
      3 days ago

      That is wild.

      Well there’s another sensor to add to my wish list!

      Although, we have a lot of HVAC flow into the bedroom so maybe the difference wouldn’t be huge.