I was vaping, and he was beside me. What can I say? I was curious to see his reaction. When I smoked analogs he would quickly get away. I swear he would look at a lit cigarette and start sneezing. So it's interesting that when I blew vapor towards his face, he didn't react to it. He just looked at me like "what the heck was that"?. He didn't sneeze or blow air out his snout. I know this doesn't prove anything, but a dogs nose is very sensitive. It reassures me that these things have to contain way less harmful chemicals then analogs. IMO (of course)