That's a fuel fire Erich.
As for the tanks, it appears you are right the tanks were present. However, by 1944, and perhaps earlier, they were low pressure oxygen tanks and in fact also had nitrogen in the air.
I'm trying to find more details, but I think the O2 generators fed O2 tanks, which then provided O2 to the crew. The tanks could not be filled while being used. I'm sure they were nasty when hit, but not nearly so much so as high pressure bottles.
I'll be searching on this a bit more, I need to find the page where I read about the use of O2 generators in WWII.
=S=
Lunatic