Indoor CO2 Levels

I'm really sensitive to high CO2 levels, so ever since I was young I had a habit of opening all the windows in my classrooms when I arrived. I feel stuffy and uncomfortable until I get fresh air. It always bugged me that nobody else seemed to notice or care.After it was recommended here on HN, I bought this CO2 meter [0] and I've been very satisfied with my purchase. It reminds me to open the window and that has had a tremendous impact on my health. I've gotten to the point whe

Switching to outside air after a while makes sense — CO2 levels in a small closed space quickly go up, and high CO2 impairs concentration.

The time plot of CO2 in the bedroom is sobering - it seems that they’re reaching levels where CO2 causes cognitive impairment.

Wouldn't the co2 buildup kill you first anyway?

One note: fresh and clean airflow is important, don't do this indoor with high co2 ppm (high co2 is basically poison)

tl;dr: NoA suggestion from someone who has built three different CO2 monitors - don't chase the numbers. 420/800/1200 ppm has no meaningful difference, and if you don't have a good way to calibrate your CO2 sensor, such as a pure nitrogen environment or taking your sensor outside at least weekly and forcing a calibration, you can easily be 500 ppm out of true.I suspect that you probably feel more clear-headed outside because there is wind and nature and distractions tha

Air you breathe out is around 40 thousand ppm (and higher during exertion), and the air in the lungs isn't completely replaced every breath - I doubt there's much measurable difference at the actual alveoli at the levels we're talking about. You'll probably get more of a difference if you're breathing deeper and faster, or just got up to get a coffee or similar.And interestingly there are studies that show that breathing in air up to 3% co2 (30k ppm) "did

Studies have shown correlation with CO2 levels and performance but pinpointing the effect to CO2 alone hasn't been established. In fact, CO2's presence chemically helps with the oxygenation of the blood.CO2 is an indicator. I don't let it climb in my home, and you shouldn't either. The problem is when people fixate on the CO2 levels. For example, you paint your walls with high VOC compounds, your flooring/furniture off-gas a lot, your vacuum cleaner doesn't have

Filling your room with CO2 by accident won't be great either. That is, proper ventilation would be needed anyway.

Co2 build up and indoor pollution is a thing.