What's the big deal? Basically, this is a fan / filter system that sucks all that excess mist, smoke, dust, etc when airbrushing, spraying, soldering, grinding and so on - a great way to help keep your hobby area clean.
When I was younger, my dad actually built me something like this, but it was rather large.. and I'm not sure where it ended up. What I know, is it was actually handy, so I've got my fingers crossed.
So the photo below is my entry showing off my current hobby area:
