"Might want to check your oxygen mix first," Charlie said thoughtfully.

The Hidran need to breathe one hundred percent humidity with a substantially higher oxygen mix.

"You know Selene has a higher oxygen mix?"

Diver One, your oxygen mix is too high.

Reduce your oxygen mix.

Diver One, your oxygen mix is still rising.

The precise oxygen mix required to keep it alive at ground level is killing it at this altitude.

"I think it has a higher oxygen mix."

There is also, in this model, an environmental control - here - if their excellencies prefer, perhaps, a richer oxygen mix?

This original and Silver Dreadnought versions' gauntlets have flamethrower nozzles, capable of firing a hydrazine-liquid oxygen mix.