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Maraya1969

(23,068 posts)
1. I agree with air filters but I do not think they can prevent viruses.
Tue Jul 7, 2020, 05:14 PM
Jul 2020

Unless I am missing something.

Although someone told me yesterday that even though viruses are smaller than the holes in masks they are attached to water molecules mostly and those would be stopped by the masks. Maybe that is the theory behind the HEPA filters.

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