And there are no set standards or protocols for testing ozone production in milligrams per hour (mg/hr). Ozone output levels can vary as a result of air temperature, humidity, barometric pressure and other factors. Moderation is the key to a successful ozone treatment. And extreme levels are not required for permanent odor removal. Ozone can do great things, but as with any substance, too much or excessive levels will create problems. Once ozone reaches a certain level, degradation and deterioration of materials begins. In the event these units were creating the extremely high levels of output claimed, the ozone would be causing unseen damage to vulnerable materials like speakers, leather furniture, electronics and other materials. Beware of sales claims for ozone generators with very high ozone output at a price that seems to be too good to be true. Sellers on the internet often make false claims regarding the performance of their products in order to obtain a sale. Beware of any type of air purifier that produces ozone and claims the product is for use in occupied spaces.
So the state of California now has ozone restrictions for consumer air purifiers, and industrial ozone cleaners like the OdorFree have special labeling requirements. For decades prior to that time, ozone had been used commercially in the hotel, apartment, janitorial, water and fire damage remediation industries and many others, while spaces were unoccupied. This created concern at the EPA, the FDA and the American Lung Association, which resulted in adverse publicity for the ozone industry. In the recent past, some direct marketing companies sold air purifiers that produce ozone to consumers for use in occupied spaces. Therefore, ozone should be used with caution. However, humans and pets are also made up of molecules, so ozone at high levels has the potential to irritate the eyes and respiratory system, especially those with asthma or COPD.
These are valid safety concerns because the ozone breaks apart molecules as part of the oxidation process, especially odor causing molecules.
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