oxygen

Does the brick vapor contain less oxygen in vapor because he burns the butane that is possibly lowering the amount of oxygen in the vapor? And what do u think about inhaling directly from the electric oven which is in 99% of all vapes? . Does 0 resistance will usually mean more oxygen?. And...

so, the title basically says it. i wanted to discuss a bit about how ppl usually report they can get dark abv and good extraction from butane vapes while avoiding combustion. could it be that, because the heat source is not heated atmospheric air but combustion products like CO2 and H2O. the...