SoClean SC1200 Frequently Asked Questions Manual page 9

A: Activated oxygen, also called ozone or O3 occurs in nature. It is
produced and used commercially in applications for sanitizing produce,
waste and drinking water. The SoClean is designed to keep the
activated oxygen enclosed in your CPAP equipment and the secure
chamber. And, when the sanitizing process is complete, the ozone turns
back into regular oxygen.
Q: Isn't activated oxygen ozone?
A: Yes. These terms are interchangeable and mean the same thing.
Q: What is the concentration of ozone inside the SoClean CPAP
cleaner and sanitizer?
A: SoClean uses enough ozone to thoroughly sanitize your CPAP
equipment and by the time you open the chamber it will have
decreased to 0 ppm.
Q: You are using ozone as a disinfectant, will it harm my CPAP
mask or hose?
A: Acrylics, polycarbonate and silicone, which are the primary materials
of masks and reservoirs, are completely compatible with activated
oxygen cleaning, and have stood up to the use of the SoClean.
Q: How does the SoClean produce activated oxygen? Do I have to
buy supplies for it?