Re: Natural Coconut Barbecue Charcoal by aFire
Smoking a cigarette does not raise the ambient CO level any appreciable amount. Generally one round of 3 coals regardless of type (nat or quicklite) raises the CO level to a point that is considered just above normal (about 30ppm). A second round can raise it as high as 50 ppm which is still reasonably safe. I've seen levels as high as 75 ppm on a day of heavy smoking. Say like 4 bowls in a 10-12 hour period. This is in a closed up house with no real ventilation. My CO alarm is level/time weighted. If the level stays at 75 ppm for more than about 20 minutes the alarm will go off.
So I don't know, IMO smoking is a risky pastime regardless of the mode.
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