Originally Posted by
EnyFlyr
“In the fall of 2016, they placed participants with facial hair ranging from stubble to beards grown to waist-length in a chamber where they simulated altitudes from 10,000 to 25,000 feet above sea level.
The men wore two different models of mask supplied by Air Canada while researchers monitored their blood oxygen saturation levels and tested respirators for protection against carbon monoxide or toxic fumes in the case of smoke in the cabin.
"It was 100 per cent success," she said.
"We had no one fail the study, regardless of beard length."
Europeans have known this for a long time. The whole no-beard movement is from the 70's and has zero scientific base. The FAA AC's etc are complete nonsense with nothing to back them up.
This needs to change - either to accept the fact that it's just a thing of image and use that as an excuse, or stop using oxygen masks as the reason for it.