From Pathfinder #149: Against the Scarlet Triad, which isn't enabled.

Caustic Vapor

HAZARD 17

Stealth +30 (master)

Description The door slams shut, and poison gas fills the room.

Disable DC 36 Occultism (master) or DC 36 Religion (master) to exorcise the spirits

Breath Snatcher (occult)

Trigger A living creature other than an ooze spends at least 3 rounds in the room

Effect The trap activates and fills the area with caustic nightmare vapor, exposing all creatures within.

Caustic Nightmare Vapor (acid, poison)

Oozes are immune to this poison

Saving Throw DC 38 Fortitude

Onset 1 round

Maximum Duration 6 rounds

Stage 1 4d6 acid damage and Confused (1 round)

Stage 2 6d6 acid damage, confused, and Off-Guard (1 round)

Stage 3 8d6 acid damage, confused, off-guard, and Stupefied 2 (1 round)

Reset The trap resets after 1 day.

Pathfinder #149: Against the Scarlet TriadOGL