Ozone is not recommended because studies show that any dose of ozone that does not exceed safety limits is not effective at virus removal.
In addition, since ozone is dangerous to all living plants and animals (including humans), ozone should only be used in unoccupied rooms.
Instead, the CDC recommends improving ventilation and the use of HEPA filters indoors, both of which have a long track record and concrete evidence they reduce COVID-19 transmission.
Read More: The CDC’s Recommended Ways to Reduce COVID-19 Transmission
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