But because the air molecules are more dispersed, each breath delivers less oxygen to the body.

Red blood cells deliver oxygen to working or active tissues.

It is often set to deliver oxygen between 6-10 litres per minute.

It can do nothing but deliver oxygen since the Soviet ship is too small to carry additional passengers.

Many turned blue because their lungs were too weak to deliver oxygen to the blood.

The paramedics can deliver oxygen and get your child safely to the hospital.

For this treatment, you lie inside a chamber that delivers oxygen under high pressure.

And iron is needed for red blood cells to deliver oxygen throughout the body.

Early this century doctors developed safe ways to deliver oxygen through the nostrils.

If you need to have a supplier deliver oxygen for your cruise, it is best to leave from and return to the same city.