[haram_masala]

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

[MBCook]

It doesn’t look like it hits 1000 ppm. I thought anything under 1000 was fine and concern didn’t start until closer to 1500.

[gambiting]

My office at home will quickly go over 2000 and then 3000ppm if I keep the door and window closed. It sucks in winter because I basically have to keep the window open(and be cold) if I want to have the privacy of a closed door.

It did make me realize why I was feeling sleepy and not quite so focused after long period of time in that room, so getting a CO2 sensor was great in that sense. I also stopped closing the door to our bedroom - CO2 levels would easily go over 2500ppm overnight if you left the door closed.

[elcritch]

I could imagine that happens in many boardrooms too. ;)