Hi I found your post while searching for a similar issue and while doing some research I found this
Here's what you should know about traditional e-cigarettes, marijuana vaporizers, CBD pens, and more.
www.healthline.com
Among some others as while just joining this site i was introduced to the water vape pod advertised so then have done some more research they are pretty hard to find but im hoping the water vape might be better for those of us with auto immune system issues as the vg/pg causes so much inflammation and gut issues i havent really found much info from vapers who made the switch to the water vape systems