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Old 15th Dec 2023, 10:42
  #17 (permalink)  
brokenagain
 
Join Date: Nov 2014
Location: Timbuktoo
Posts: 265
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Oxygen masks are designed to seal with the skin. In case of toxic smoke in the cockpit beard hairs won't allow this sealing.
That’s an old wives tail that’s been disproven.

SFU STUDY BUSTS MYTH ABOUT FACIAL HAIR ON PILOTS
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