6. Green smoke
Green smoke comes next and it has always been a trendsetter in the e-cig industry. They were the first company to produce a two-piece electronic cigarette.

Miriam Doerr/Shutterstock.com
Green smoke comes next and it has always been a trendsetter in the e-cig industry. They were the first company to produce a two-piece electronic cigarette.
Miriam Doerr/Shutterstock.com