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If you consider buying a an air ionizer or ozone generator or any other miraculous anti-COVID-19 air purifier, be sure to read this (just the first few pages are sufficient).
Note the lawsuit explicitly mentions HEPA filters and air filters with built-in UV lamps which *do* remove viral particles which are ~10x larger than HEPA pores.
They are mentioned because the vendor was actively pushing falsehoods about HEPA to boost his sales.
