Greeting:  Companies specializing in post-fire restoration often have
ozone rooms.  Goods that have absorbed smoke in a house fire are left
in the room for hours or a few days while ozone is generated inside.
The ozone "eats" a remarkable variety of smells, including rodent,
beer, and cigarette odors.

The last time I saw this done, a stinking grand piano action was left
in the room for about half a day, and came out absolutely odorless.
We don't need no stinking grands...

Doug Rhodes