Today I was asked this stupid but interesting question about desflurane: You have a half full bottle of desflurane sitting in the OR with the room temp set to 70F in Omaha NE. What is the concentration % of Desflurane vapor in the half full bottle? I really don't feel the need to spend a bunch of time figuring this out but I really am curious to see how you figure this out. So for those of you who are smarter and/or more motivated than me....have at it.