I can't see how using a vape could possible be at all worse than being in a steamy shower, let alone being in a sauna for example.

And any liquid that may condense and settle in the lungs evaporates out quickly enough.

You couldn't get secondary drowning from it, thats for sure!!)nor could you from a shower or sauna, Unless you stayed in the sauna for a day or sumthin!!!

Jonny