Welcome to FT!, kerm65
Another issue some airlines have had with respirators is removing them to be able to use the emergency air / oxygen supply is a problem. The normal drop down oxygen mask can be used over standard face coverings or those face coverings / masks can be quickly removed. Not so with a respirator.
And of course, a vent is a no-no. It defeats the purpose of mask wearing, protecting others..
Last edited by WineCountryUA; Oct 25, 2020 at 3:08 pm
Reason: welcome