Name That Solvent

Every once in awhile, the HVAC system in the science lab building is kind enough to spew intoxicating aromas into my office. Sometimes it is exhaust from contractors vehicles in the area smoke from nearby forest fires. Todays flavor was described by a faculty member who was in my office as a faint xylene, organic solvent, spray paint type odor. It came and went, but it is really par for the course for a $35M building that is less than 2 years old. Don't get me wrong, the taxpayers have provided us with a vast improvement over the old building, and besides, the effect remindes me of how I used to feel at Dead concerts.