Environments and Particles Part 1: It's like a Guitar without the strings.

Unreal is lethal with particles.  I've worked with Unity 5's particle system where it's straightforward to assemble and easy to navigate. Unreal Engine requires somewhat more research.  Nonetheless, I caught on and reused the same material from my Capstone project in here.  Very happy with the outcome of it.  I made two variations: One that's for ventilation and another to "fake" volumetric lights underneath lit areas.