Ozone Exposure

I have two clients who were in a (smoking) hotel room for the night. The ladies advised that they had allergy problems and could not stay in a smoking room. The staff placed an ozone machine in the room with them before they went to bed and advised them to run it until the smell was gone.

Both ladies woke up with severe head aches and nosebleeds. They have since developed many other problems. We have a pre-suit mediation next week, and I am getting nowhere trying to prove up long term effects of ozone exposure.

Does anyone have any info they can share? Has anyone suffered any kind of exposure like this? Any information would be greatly appreciated.