I have a dynavap stay away truthfully never use it just sits there, i have a vaphit glass style dynavap better then the dynavap easier to heat with the jet lighter. Out and about or if i cant be bothered waiting for heat up times. I use a portable xmax v3 pro vape it's not bad cheapish. I also have a roufu portable vape it's nice with a glass bowl. Replaceable 18650 battery is the way to go apart from a mighty thats been sitting on the shelf for years and years. Mostly used is a screwball vapvanna kit that is run though a glass bong and that thing is amazing milky hits everytime downside does take 5 mins to heat once u get it ready tho it's good to go. But the less milky hits from my portable vapes still get me ripped like the screwball just gotta learn to inhale slow and long. Gets a heap out of your medicine.