Sure… the vaporizers are using a resistor to vaporize I assume an oil base infused with thc or cbd… so the oil is vaporizing and activating the thc and you inhale it… but it’s not going to be concentrated enough to catch on fire once you inhale it and exhale it…

So maybe if you collected the smoke from a vaporizer into a two liter bottle and found a way to blow it over a candle…

I think it would either put the candle out or nothing would happen. The oil has already been vaped so I don’t think there is enough concentrated oil in the smoke to catch flame or whatever