Carl, Chris, Jon & Dave
My wife is not into scents or candles, and the engines I'm running lately are pretty new: Lionel Shay, MTH GP Demo, MTH GE Devo, and Lionel S3. Fortunately, both Lionel and MTH make it easy to turn off the smoke units and even adjust volume via remote control. But I was still hoping that a chemical engineer would come up with a safe, no-smell formula that would produce gobs of smoke!
Bruce