Hey, I've been an Arizer owner for roughly a year now. My major concern here is that I have been using the bowl upside down (RUBBER NEXT TO THE HEATING ELEMENT) for most of the duration of that time. I realize the stupidity now, as I originally thought the rubber was used to prevent against melting, or sticking which could occur with a glass-glass connection. The rubber is in the vapor path when used normally anyway, but having it literally next to the heat source would release a ton of toxins I'm assuming? I'm wondering if anybody knows what kind of material the rubber on the bowl is made out of, and if there are harmful effects which result from this kind of incorrect usage? I'm extremely, extremely anxious and worried of the possible toxins I've subjected myself, my girlfriend, and our friends and family to. Any and all replies would be appreciated, thanks!