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For the media to compare the two and come up with an arbitrary conversion system based solely on the nicotine content - a relatively harmless chemical - is simply ridiculous

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Dust, pet dander, and other types of particulate matter may contain bacteria, viruses, and mold spores, which can grow inside the filter. He says some air purifiers have UVC (Ultraviolet-C) and ionization features that can deactivate or kill these microorganisms, prolonging the filters life and reducing re-exposure risks when replacing the filter

Li, X., Wang, L., Xia, Q., Liu, Z., and Li, Z., Catal