Nope.

They have a gas-based firefighting system instead of sprinklers for obvious reasons. It does lower the percentage of oxygen in the building, but not enough to kill anyone.

I found this by googling “Yale library fire oxygen.” It was literally the first result.

Fact-checking is your friend.

It’s true. It’s not the fire suppression system that kills you. The Librarians come and personally murder you for starting a fire in a library. But you didn’t start a fire you say? No matter. You are collateral damage. Everybody gets killed to show that arsonists have no chance of escaping justice