Small ducted fan for portable bag-filling?

I know I can't be the first person that thought of this (maybe someone has already pulled this off successfully?)

I want a small, in-line electric ducted fan (EDF) that can turn many of my generic portable vapes into a portable volcano

Here's how: first, I need to source a ducted fan small yet powerful enough. with the fan being "ducted" in a small, self-contained, tubular enclosure, simply attach silicon tubes /...

Small ducted fan for portable bag-filling?