[rubicon33]

Interesting, I had no idea. Do you think it's worth getting a CO2 monitor for a home office? I don't usually have the windows open since it's cold out. Is one person enough to elevate a small 10x10 office to cognitive impairing levels?

[Shank]

It’s a small investment and probably worth it if you already suspect bad ventilation. Within seconds of plugging a CO2 monitor into my bedroom outlet, the monitor was registering 1200ppm — and that was without any humans in it prior.

[pcr0]

I doubt you'll need one. It's typically a concern when sqft/person is < 80, as is often the case in open-office plans and classrooms.

Just try to open the window at least once a day.

[zupa-hu]

I disagree. It _may_ be totally worth it depending on the place. (Eg. what heating system you use, how many electronic devices there are, how big the room is.) I'd say do a little test: open the windows; if (it feels refreshing) { get one }.

Disclosure: I'm not an expert, simply got interested in this lately as I strongly feel its impact on my productivity.