The next time you dive into a vape shop, you'll see obvious changes to packaging, and limited options when it comes to e-liquid refill and e-cig tank sizes. Behind the scenes, manufacturers also need to notify regulators of new products months before they're permitted to go on sale. But if you've watched the video above, you'll obviously be clued up on all that already.

[Thanks to Avant Garde E Liquid for letting us drop in to film]