Removing Cigarette Smoke Odors

If she was a heavy smoker, the smoke has gotten into the mechanism also. I would use baking soda (dry) sprinkle it everywhere, then vacuum in an hour. Coat it again with the baking soda and just leave it to wear off naturally. You can also try the carpet deodorizers for pets and smoke. I get mine at the local dollar store.

A vigourous cleaning using full strength distilled vinegar soaked rag on all surfaces (including the underside of the seat, arms, etc) and allow to air dry, should do the trick. You have to clean every nook and cranny. Be careful and don't clean the actual electric components though! This cleaning may need to be done two or three times but I know distilled vinegar will work and it's natural and safe.