1.   She was breathing oxygen through a tube.

2.   At best, breathing oxygen at sea level by healthy people will have a greater psychological effect than any known physiologic effect.

3.   Breathing pure oxygen under increased pressure allows blood vessels to carry more oxygen deeper into tissue throughout the body, including the brain.

4.   Guest American astronaut Jerry Linenger and his two cosmonaut hosts will use the tools to try and repair a leaky cooling system and a device that generates breathing oxygen.

5.   Her parents and doctors hope that breathing concentrated oxygen will revive brain cells that have been inactive since she was born five years ago.

6.   I saw a mother of five, whose doctors thought she would be dead by now, ride across America breathing oxygen from a bottle strapped to her bike.

7.   However, there is no evidence that breathing oxygen by healthy people at sea level produces any significant benefit.

8.   In response to the malfunction, the crew turned off the spinning gyrodynes that steer the panels and also shut down the device that produces breathing oxygen from wastewater.

9.   Instead of breathing oxygen, the people who live in the house inhale caustic fumes.

10.   Linenger and his cosmonaut hosts have had to rely on the controlled combustion of lithium perchlorate candles to generate breathing oxygen.