FIRST FILTER.
That's kind of why we have, too. Back home, the maximum security prison couldn't even dream of holding some of the people we had to take down, so...yeah. There's that. It can hold pretty much anything.
We also have some specialized weapons, or did, but I can recreate that stuff in a couple of days if I need to, or expand outward from there I found Captain Cold's gun in here and that is off limits; I put that shit in lockdown. Caitlin doesn't even know it's here, nobody's touching that. Ever. And I have other prototypes and variations on Barry's suit which was originally designed for the fire department, but I can tweak those if any of your Avengers need or want a protective suit when they go out in the field, stuff like that. At this point, it's pretty eclectic in here. We just do what we need to have things done.
Also, I just realized I never actually introduced myself to you, sorry. I'm Cisco Ramon. Mechanical engineer.