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But N95 masks aren't cheap and AFAIK must be disposed after one day of usage. So they must be reserved for the medical workers, while the other can use 3 or 4 layers surgical masks, which should provide adequate protection.

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They are pretty cheap in bulk when not in the middle of a supply crisis. Like a dollar or so each.

Still 25 times more expensive than 3 layers surgical masks, which costs like two dollars for 50 pieces.

Oh yeah and I don't live in the US so my definition of 'expensive' can be different.

Think about how many disposable gloves the average healthcare worker goes through. Dozens per shift, at least. Those are about 5 cents a pop, easily more than a dollar per day.

After 3 hours only :|

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