If you are interested in vaping CBD, you can try some CBD isolate. It is about as pure CBD product as you can get. Some good CBD onlne vendors do sell CBD waxes with only natural CBD and terpenes and no carrier shit.
I had a very nice experience with
www.fullyactivated.net ,and he has been recommended on the FC before. He seems to focus on isolates and then some topicals. The isolate is sold in powder or shatter form, and was the best price around at the time. He provides lab testing results and seems to always throw in a small sample of his highest strength topical balm which is awesome.
Anyway, I have the powder and have been placing a small dab of wax on cotton, as recommended earlier, and after heat soaking the wax in and giving it a stir, I will sprinkle a small dusting of isolate powder. Pure isolate is all mellow effect and no flavor. It just takes the edge off the THC in the wax. The only problem is I will only do this with the F2 upside-down when using the wpa for obvious reasons.
Now I have used just wax soaked cotton in my F2 stuffed in the mini-bubbler or the wpa as a stem. As long as you don't go using a massive blob, I find the cotton keeps the concentrate "in place" and it doesn't go dripping into the heater. However, when the isolate melts it becomes runny, moreso that any wax I've used. So my CBD is only added to bong hits for that reason.
That said, right now I'm typing away on my couch with some Cheese flower in the mini-bubbler of the F2. I like using the bubbler dry as it gives you a long airpath in a small amount of space. The F2 gives such an even roast throughout a loose pack at my 385 setting. What a great portable.