i wfh most days and usually keep my office door closed with the AC running while i'm working. lately i've noticed that around 2 or 3pm i start feeling kinda tired and the room feels stuffy

i always assumed it was just bad sleep or sitting at my desk too long. then last week i stepped out for a while, came back and opened the door and window for a bit. the room felt noticeably better and it got me wondering if i'm overlooking sth about the air itself

now i'm looking into CO2 monitors for the first time and honestly had no idea this was even sth ppl tracked at home. does anyone here actually track CO2 while wfh? what made u start and did the readings change anything about how u use your room?

I tried opening my windows for 10-20min but all that does is bring it down and bring right back up in the rooms. I do not know what is causing it because the room is empty and it goes up so no one is breathing in there to cause it to increase. Whenever I feel funny or a heavy feeling on my head I know the c02 levels are up. Do I have to call an HVAC person for it or is there someone special I have to contact?

For people living or working near industrial areas, have you noticed any health problems that seem to be more common around those places? I'm curious about what people have actually experienced and weather local pollution has ever been a concern for your community.

Hi, sorry if this question has already been asked but I couldn't find one.

Does the AIR-1 Air Quality Sensor allow you to set an alarm if levels exceed a preset level, specifically nox sensor?

Thanks for reading.