I spent a good deal of time finding out as much as I could about the Phillips recall cause. Naturally, you don't get that level of detail from their press releases, which will put a rose colored spin on things. From what I found, it seems the ozone produced by such "cleaning" systems may have been at least partially responsible for the breakdown of the sound/vibration insulation INSIDE the machine. When that insulation breaks down, it can be carcinogenic. Pumped straight into our respiratory system! *ugh*

The only reason I keep using my Phillips is I don't use any kind of ozone generating equipment and don't live at an altitude where the concern increases. I have been keeping an eye on available models and pricing for a replacement, but the glut of cheap machines that was there a few years ago has been replaced by sold out machines and high prices on the few remaining models that can be found in stock! 🙁 And in the ~year since the recall, Phillips has offered bupkiss. In their propaganda, they are trying to lay the blame on the FDA approval process. As if the FDA made them use potential carcinogenic insulation.