I've asked people if I smell like smoke or anything right after I use it and ...
I've used this multiple times in my car or my room.  I've asked people if I smell like smoke or anything right after I use it and not a single person has said they could smell anything on me.  It is great.  The one time it didn't work is when I coughed pretty hard, but I don't think it was the product's fault, it was more so mine.
Rating: 5 stars