Donning O2 mask in cruise?
Fact is some are required to wear the masks, some are not. The benefit of wearing the mask is clear. I think the disadvantages are also pretty obvious.
Our masks, at least so we are told are not designed to be continuously taken out. Given three hour sectors and a cruising level almost always above 350 our masks would probably be used several thousand times a year.
Maybe practice makes perfect but I tend to believe restowing properly is a maintenance activity. Having them work when you need them could be argued to be more important than the five seconds you save in the emergency descent by not having to don the mask in the explosive decompression scenario.
The only actual case where this might have been a factor if I remember correctly was the Payne Stewart Learjet in the US where presumably the regulation applied, but for whatever reason did not help. How do people who apply the rule deal with restowing?
Our masks, at least so we are told are not designed to be continuously taken out. Given three hour sectors and a cruising level almost always above 350 our masks would probably be used several thousand times a year.
Maybe practice makes perfect but I tend to believe restowing properly is a maintenance activity. Having them work when you need them could be argued to be more important than the five seconds you save in the emergency descent by not having to don the mask in the explosive decompression scenario.
The only actual case where this might have been a factor if I remember correctly was the Payne Stewart Learjet in the US where presumably the regulation applied, but for whatever reason did not help. How do people who apply the rule deal with restowing?
