I think this could add a lot for immersion, but there are a lot of problems with the scent medium. It's your body detecting particles, not waves. Particles ling

I think this could add a lot for immersion, but there are a lot of problems with the scent medium. It's your body detecting particles, not waves. Particles linger, so it's not like the smell's going to go away. Say you're in a burning village in a game, and the ScentScape releases burnt-carbon molecules. Wow, a real burning village! I'm immersed! Then you ride your FantasyHorse to the next kingdom to warn their king of the impending attack. Except the burnt-carbon's still in the air, and you get this weird mix of regal smell and burnt village smell. I really think they'll have to use a different mechanism for this to work - a small mask, perhaps. Or perhaps timed-Febreze particles.