Bowman reported the facts; then he asked quickly: "What's your oxygen reserve, Pete?"

Whales typically stay close to the surface for a series of short, shallow dives while building their oxygen reserves.

How much depends on physical condition - the obese have less oxygen reserves than the slender among us.

I began to take pictures, and I felt justified in turning on the oxygen reserves.

If I'm right, that seven-day oxygen reserve doesn't mean a thing.

Their armour suits would provide some protection against decompression, and they had a small oxygen reserve.

Breathing should quicken so that the muscles can be given an oxygen reserve.

On the same day, the tanks attacked the hospital and destroyed an oxygen reserve.

He sealed it and activated the oxygen reserve.

Her oxygen reserve was limited, and any wrong turn that led her into an unclimbable wall could be deadly.