I wonder: - what's the actual oxygen carrying capacity? If they're up to human trials then I imagine they've already validated this step in animals - can it a

I wonder: - what's the actual oxygen carrying capacity? If they're up to human trials then I imagine they've already validated this step in animals - can it also scrub CO2? Without doing more research, I'm putting most of the probability mass into it being be a small but significant oxygenation aid. Not enough to let us survive without working lungs, but enough to push the odds in emergency situations, while also being harmless. Something like 5% extra survivability for a $100 cost and a sore butt. Well worth it, but not a revolution.