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My understanding is they are good for 4 hours. When the masks are saturated they are not effective. Maybe it's better to have 2 and rotate them out.

I saw someone else post this on HN... Worth a look. http://www.imcclinics.com/english/index.php/news/view?id=83

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That's a valid idea, but it's unfortunately not something she's in control of. All the PPE protocols are coming from people higher than her.

They're also not getting eye protection at all so she's taken to wearing her glasses instead of contacts. Not as good as actual eye protection, but it's better than absolutely nothing.

In short, they don't have what they need.

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