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Under-mask beard covers achieve an adequate seal with tight-fitting disposable respirators using quantitative fit testing - ScienceDirect
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Alexander Falk on X: "Zappafication of beard to be compliant with CDC recommendations for proper fit of N95 respirator face masks... #beard #zappa #n95mask #cdc #covid19 #COVID2019 #PencePandemic #zappafication #TrumpLiesAboutCoronavirus https://t.co ...
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Hair today, gone tomorrow: How personal protective equipment guidance changed doctor's facial hair during the COVID‐19 pandemic - Sahota - 2021 - Health Science Reports - Wiley Online Library
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Under-mask beard cover (Singh Thattha technique) for donning respirator masks in COVID-19 patient care - ScienceDirect
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To Shave or Not to Shave: How to Correctly Wear a Mask If You Have a Beard or a Mustache, Plus, Where to Find Masks That Fit Right
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Assessing the effect of beard hair lengths on face masks used as personal protective equipment during the COVID-19 pandemic | Journal of Exposure Science & Environmental Epidemiology
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