Thanks everyone for encouraging remarks about the ozone process.
Mac, I had my 3 acoustic tiles behind the piano and that blocked some if not all of the smoke from the sound board area of Everett. The keys were uncovered but not much can get down through the keys, I hope.

I will just have to wait and see what happens over the next year and how much damage continues to develop. My concern now is the wait time of several weeks before they get to the point of using the ozone machine on my piano. I lost all water lines, electricity lines, as well as duct work so there is quite a bit of prep time just getting those things going again.

Should I ask Servicemaster to accelerate the ozone usage on my piano and not wait another month to do it?