Not only could she improve the quality of the years she has left but it would be better for my Father-in-law as well. My MIL, like many older folks who've been smoking all thier lives, smokes in the house and in the car. My FIL has COPD and would *definitely* be better off without the second-hand smoke. My FIL has quit smoking - but still chews.
Anyway - I know it's a long shot that we'll be passing around the ProVari next Christmas but, for the $65 bucks I spent (Smokeless Image has a 20% off sale going right now) - it is worth a try.