Originally Posted by
rattman
Calling BS on the lost sub. Unless it a polluted atmosphere like chlorine or flurine as an example. No way that 6 hours with no oxygen production would kill over half the crew between chemical oxygen generators and CO2 scrubbers. 6 hours would be total non event
Give it 48 hours and see if the story has died or if there's a bit more meat on the bone. The 'sources' don't fill me with confidence.