I have one of the Living Air Classic things. I haven't
noticed any damage to rubber. However, the unit
failed after only one year.
Also, when it was working, I didn't notice
any reduction in dust levels as I was hoping it
would do. What it did do is mask smells with ozone.
You can adjust the level of ozone production until
you can't smell the ozone anymore.
I am considering
doing the furnace filter thing as kanling suggests.
I had a tabletop "hepa" filter unit once and I had
to wipe the dust off the top of the damned unit.
Further, it didn't seem to do anything for smells.
Now that one lives in the landfill.
not sure that any of these things really work....