Who has two thumbs and has minimal experience with modern HVAC systems? Hint, it's Jonathan Strange. His brief experiences with the twenty-first century have taught him what a television, computer, and refrigerator are but concepts like air vents, air conditioning, or HVAC systems in general go straight over his 1810s head. As such, he can't help but look a little confused at Five's suggestion.

"Air vents? I'm afraid I don't know what you're talking about."

Strange hasn't realized yet that Five doesn't exactly know when he's from. While normally his waistcoat, cravat, et cetera combo would give his time period away in an instant, it doesn't do anything now. After all, everybody managed to escape from a vaguely 1800s party, which he's still wearing the suit from.