The EPA dropped a health warning about exactly these devices. They are not air cleaners. They are pollution machines that trade bad smells for chemical burns in your respiratory tract.
Ozone generators work by creating O₃—a highly reactive gas. In the upper atmosphere, that’s a good thing. In your bedroom, it’s like inviting a bleach factory to set up shop next to your pillow.
But wait—don't they kill mold and viruses?
Yes, but only at dangerously high concentrations. To actually kill stuff, you need ozone levels that exceed federal air quality standards by a mile. Manufacturers know this. They bank on you not checking the math.
The EPA is clear: these machines do not remove dust, pollen, or pet dander. They just mask odors by destroying the molecules that smell. And in the process, they damage your mucous membranes. Nice trade-off, right?
