O3N cleaner has no noise and a slight smell of ozone when working, and it will stop working automatically after 60 minutes. It has a built-in ozone generator that will oxidize the oxygen in the bag to naturally activated oxygen ( ozone ). The activated oxygen is the best sanitizing agent and eliminating up to 99.9% of germs, viruses, and other pathogens in the hose, mask, and water chamber in 60 minutes.
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