The very first time I ever smoked out of a vaporizer which happened to be a Volcano classic w/solid valve was the closest to something "bad" happening. I had just established my premium nug dealer a few months prior so we would hang out & toke you know. One day he busts out the Volcano and I'm like wtf is that?! We packed white widow and northern lights, vaped like 6 bags, and by the end I was blazed out of my mind. I got SO HIGH that it was, to this day, the ONE & ONLY time I ever got sick and threw up. That's my two cents :twocents: