- Dr. Edgar Reyes had a trap ready for you, so you need to escape it.
- Look to the Northeast where you can see a grate in the floor.
- Shoot out the grate and then drop into the ventilation shaft.
- Once there, go over to the right.
- Go to the right after that and follow it with an immediate left.
- Get to the T-intersection and head to the right.
- Shoot out the next grate after that.
- Climb out of the vents after that.
- You're almost through the poison, but you're out the trap itself.