Liquid breathing is a form of respiration in which a normally air-breathing organism breathes an oxygen-rich liquid (such as a perfluorocarbon), rather than breathing air. ... In fact, these liquids carry more oxygen and carbon dioxide than blood.

What liquid can you breathe?

A fluorocarbon called perfluorohexane has both enough oxygen and carbon dioxide with enough space between the molecules that animals submerged in the liquid can still breath normally. This unique property may be applied to medical applications like liquid ventilation, drug delivery or blood substitutes.

Can you actually breathe liquid oxygen?

The reason we cannot breathe liquid water is because the oxygen used to make the water is bound to two hydrogen atoms, and we cannot breathe the resulting liquid. The oxygen is useless to our lungs in this form.