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Dec 18, 2020·It is known that the N95 mask, if worn for hours, can reduce blood oxygenation as much as 20%, which can lead to a loss of consciousness, as happened to the hapless fellow driving around alone in his car wearing an N95 mask, causing him to pass out, and to crash his car and sustain injuries.

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Jun 29, 2020·Journal Headache: “Most healthcare workers develop de novo PPE (such as N95 face mask) associated headaches or exacerbation of their pre-existing headache disorders.” PMID: 32232837 Journal of Life and Environmental Sciences: “This study showed that the filtering efficiency of cloth face masks were relatively lower, and washing and drying ...

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Jun 29, 2020·Journal Headache: “Most healthcare workers develop de novo PPE (such as N95 face mask) associated headaches or exacerbation of their pre-existing headache disorders.” PMID: 32232837 Journal of Life and Environmental Sciences: “This study showed that the filtering efficiency of cloth face masks were relatively lower, and washing and drying ...

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