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A comment on Analyzing Carbon Dioxide levels while attending IETF-115 in London, UK. Parent comment

Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by dataflow on Saturday November 12, 2022 @03:35PM (#33576776)
Unfortunately that doesn't seem to work for me. Right now my room has > 1200ppm CO2 (due to closed doors/windows) but I don't feel sleepy at all, or any differently (that I can discern) from when it's < 600ppm. Do you know if it needs to be significantly higher for that feeling to kick in? If so, approximately how much?
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Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by colechristensen on Saturday November 12, 2022 @03:51PM (#33576923)
Have a meter going and look at it. I’d describe it as a feeling in my lungs as i breathe I can start to feel above 800ppm. The air feels heavy maybe?

I think some people are more sensitive to it than others.

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Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by OJFord on Sunday November 13, 2022 @02:27AM (#33580857)
Have you tested yourself by concentrating on your breathing a bit and then guessing the level before you look at it?

I'm not disbelieving, just curious.

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Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by afusalan on Saturday November 12, 2022 @04:12PM (#33577130)
Hmm, I've never had the device to measure the levels tbh. I can say I'm fairly sensitive to air as i do breathwork regularly. 1200 ppm sounds a lot, maybe that's coming from not just CO2 in the air but maybe dust particles, smoke, food vapour, or chemicals such as odor, ozone, perfume, house cleaning products etc.
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Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by JohnBooty on Saturday November 12, 2022 @05:26PM (#33577790) 

    Unfortunately that doesn't seem to work for me.

    Right now my room has > 1200ppm CO2 (due to closed 
    doors/windows) but I don't feel sleepy at all
It's a very gradual difference. If you're doing something interesting at 1000-2000ppm you probably won't feel sleepy, but it will probably be harder to focus on something you don't find stimulating and you'll be more inclined to feel sleepy.
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Re:Analyzing Carbon Dioxide levels while attending IETF-115 ... by dataflow on Saturday November 12, 2022 @05:29PM (#33577813)
Interesting, I guess I can try to see if I can notice that. Thanks!
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