I'm reasonably certain I notice levels above 800ppm. It's subtle, but everyone i... | Hacker News

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		hedora on April 27, 2023 \| parent \| context \| favorite \| on: Possible toxicity of chronic CO2 exposure associat... I'm reasonably certain I notice levels above 800ppm. It's subtle, but everyone in the house starts getting a little edgy (kids and adults). Sure enough, the CO2 meter is reporting > 800. I doubt I could differentiate between 800 and 1600 though.

foobarbecue on April 27, 2023 [–]

I'm not saying you're wrong, but remember 1600 ppm is only 0.16%, so that's impressive sensitivity. 4x atmospheric.

We've been discussing 1% to 3%, which is 10,000 to 30,000ppm.

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