A recent study has provided strong evidence that beards do not interfere with the effectiveness of oxygen masks for airline pilots, challenging long-standing policies at many airlines that require pilots to be clean-shaven.
The study, conducted by researchers at Embry-Riddle Aeronautical University and published in the journal Aerospace Medicine and Human Performance, found no difference in oxygen saturation levels between clean-shaven pilots and those with short or long beards when they use standard airline oxygen masks.
