With essential oils you put a few drops into something like 300ml of water. So the amount of oil getting to your lungs in a large room out of that few drops of

With essential oils you put a few drops into something like 300ml of water. So the amount of oil getting to your lungs in a large room out of that few drops of oil is pretty trivial. Maybe say you get one drop of oil exposure, over 4 hours. I doubt lungs have much trouble clearing that out.