Originally Posted by
F4E Mx
So, they are going to bottled oxygen? It would seem the crew has to be using 'aviators breathing oxygen' below 10,000 feet because the engine compressor air used for air conditioning and pressurization is not known to be safe either at this point. Curious.
Bleed air isn't what's bad, it's what the OBOGS system is producing. Cabin air should be fine.