No matter what you buy today, you'll always come back looking for a replacement at some point. Best choice IMHO is to get something rebuildable, IMHO.
Given you have to use it at work and want a rugged mod, I would suggest you look into a Geekvape pod in the aegis line that has an RBA that you can coil, then buy many of those RBAs and several of the pod tanks. That means you'll be good for a long time.
Pods are not the same as AOI devices, but they are not exactly the same as 510 tank systems either. But they are technically tanks systems with a proprietary snap-in connection rather than a 510 thread connection. So not exactly AOI.
The Aegis line from geekvape is their rugged line of pods and mods that are shock/water/dust resistant, that's why I am recommending you look into them. I personally have no experience with any of their Aegis pods so you will have to get info and reviews elsewhere.
You can get more info at
geekvape's site. the pod systems they have in the aegis line are
- aegis pod (max 18W, built-in 800 mAh battery)
- aegis boost (max 40W, built-in 1500 mAh battery)
- aegis boost plus (max 40W, takes 18650 replaceable battery)
The boosts may have RBA heads available both as original from geekvape and as aftermarket from other companies. You'll have to do your research on this.