4 ms·
> What are the symptoms of elevated CO2 levels? Why can't you feel them and need a monitor to tell you you are unwell? https://en.wikipedia.org/wiki/Carbon_dio
by eulers_secret 4y ago
> What are the symptoms of elevated CO2 levels? Why can't you feel them and need a monitor to tell you you are unwell?
https://en.wikipedia.org/wiki/Carbon_dioxide#Below_1% https://en.wikipedia.org/wiki/Carbon_dioxide#Below_1%
The most convincing evidence is from the ISS: at 5000ppm CO2, the crew experienced "headaches, lethargy, mental slowness, emotional irritation, and sleep disruption." - so you can feel too high a CO2 level and open a window (if you know to consider that as a problem which causes these symptoms).
The studies suggesting 1000ppm may be harmful are called out in the wiki article and it seems the jury is still out as to if the effects are real/are the result of CO2 and not confounding issues.
- stavros 4y agoSorry, I should have been clearer. I understand that there are harmful effects you can feel at very high concentrations, but it's weird to me that some people (like the author) are freaking out over concentrations they can't feel.
- brnt 4y agoWell... People aren't rational. Or particularly good self-observers. For any given concern, there's going to be a group worried too little and a group worried too much.
- kolinko 4y agoSome people are more sensitive than the others. Also, if you haven't experienced living in a well ventilated home, you may not realise you feel it - you may think that going outside is good because sun and movement, and not because you finally get fresh air.