When HN users recommended it
5 HN users recommended this between 2018 and 2020, in 5 comments.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
5 HN users recommended this between 2018 and 2020, in 5 comments.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
this one is best: https://www.amazon.com/CO2Meter-AZ-0004-Temperature-Relative...
This one on Amazon: https://www.amazon.com/gp/product/B001PDGFR8/ref=ppx_yo_dt_b...
Looks like they're out of stock now, but it has a big label on the front that says co2meter.com, so you might want to check there.
I am not affiliated with that company.
CO2Meter AZ-0004
https://www.amazon.com/gp/product/B001PDGFR8/
Been meaning to do this; do you have a link or recommended model?[EDIT: I see you already responded with the model below - https://www.amazon.com/gp/product/B001PDGFR8/ ]
I'm very sensitive to lack of oxygen in a room. Our office is old and some days they don't run the A/C if it's not hot enough outside, and I feel like I'm suffocating and my productivity suffers.
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 where I now keep the window slightly open at all times.
I'll share an anecdote which would appear to support the hypothesis that higher CO2 levels affect cognition. I play Heroes of the Storm and my performance in the game becomes notably worse as CO2 levels rise. It's not a huge thing, but I start to make more mistakes and my decision-making gets worse. This is important because at my skill-level (top 100 to top 250 globally, depending on my activity levels) it only takes one mistake in the late-game to throw the match. I've had the CO2 meter start beeping in the middle of a match, and after opening the window I've managed to turn things around because I can think with greater clarity.
[0] https://www.amazon.com/gp/product/B001PDGFR8/