Vaping has the potential to save millions of lives a year.

But how to get there?

We look at five different approaches and how they might work.

Read moreFrom e-cigarettes to vaporizers, from e-cigs to the vaping industry, a few of these devices have emerged to take on the tobacco industry.

We asked three vape-tech experts how they see this industry moving forward.

Here’s what they had to say.