The odor from the liquid Lionel smoke smells like buring electrical circuits - a rather fowl and irritating odor. My wife has me turn the smoker off. Are thre different types of smoke available for this train? And no, I'm not looking for Rose and Cinamon room fresheners - I understand that most wives really don't care for the odor of coal burning locomotives in their living rooms. I remember the smell of the smoke from the American Flyer set of the '50's. I don't know whether it is a nostalgia thing, or not, but it seemed more pleasant - a bit of an oily odor, I think.