Does anyone know the name...

[moominmuppet]

Of those "walls of air" used to divide spaces, usually to prevent heat or cold loss, or to prevent smoke from travelling? They're high-pressure air shooting down from the ceiling, and commonly encountered in public spaces (I know I've encountered them in some restaurants, grocery stores, and our public transit buildings).

Comments

[moominmuppet.livejournal.com]

Ah, yes, used for TB containment! (I just had to re-up my "TB safety training" despite not even working on main campus, let alone in actual health care work)