As a Christmas gift, I received a ozone generator/air purifier. Several such items are frequently advertised on television. I tried it last night in my bedroom where my ferret also sleeps to see if it had any effect on the odor that others (I can no longer detect it) notice. A guest in my house commented that the next morning that there was no longer any odor in that room. However, I woke with a scratchy throat and I noticed my ferret sneezing severals times. I quick internet search came up with the following site by the EPA: http://www.epa.gov/iaq/pubs/ozonegen.html In a nutshell, according to the EPA, the use ozone generators indoors is harmful. While ozone is a good thing in the upper atmosphere where it blocks radiation, it is a bad thing to breathe. No such device is approved or endorsed by the EPA, despite claims to the contrary by the manufacturers of such devices. I am amazed that they can be sold legally. If anyone else has experience or knowledge in this area, I would be interested in your comments. Mine is for sale cheap. [Posted in FML issue 5104]