Description: georgesworkshop blog describing green diy projects designed and built by the author George Plhak
Remarks on some of the inexpensive CO2 meters I am testing.
Showing CO2 readings from 5 meters in my office. My own breath over a few hours while in a smallish 10x10ft office room with one door open to the rest of the house. Only me in the house (plus a cat).
I had hoped the initial results would be more similar but I do see them converging with time.