Did the whole "smoke and fumes" drill in the sim just last month. More difficult to communicate via mask than it is to contact Mumbai on the HF! Leaving the intercom column switch latched on makes it a lot worse. (the sound of someone breathing in/out and the swoosshhh of the flowing oxy)
Methinks the 787/7E7 ought to lead the way and give us some more effective means of communication with the oxy on. How about an inflatable bag with the same elastic tube thingy around the neck?
The coiled oxy line in the sim wrapped itself around the oxy door as I pulled it out. Not being able to see it through the 'smoke' meant that I wasn't able to get my head all the way back in the seat and I couldn't even get my head to an angle where I could look up to the pack switches. One for you to store away in the memory!!!