[jrockway]

I sort of did this test last night. I assume that VOCs include ethanol, so I mixed up some drinks near the monitor. VOCs went from ~60ppb to a peak of 579ppb. CO2 remained constant at about 640ppm.

I am less surprised than other people that making an open fire indoors increases CO2 levels. Where do the combustion byproducts go if not into the air.