Wrong again! Water is respirable at ambient pressures sufficiently high
to provide sufficient PO2 (that's partial pressure of oxygen, my boy).
Unfortunately, the problem is carbon dioxide solubility, which makes
water unusable. However, liquid respiration IS successfully done with
various fluorocarbon compounds.

Come now, Anthony. Try to get at least one fact straight.

Rip

Mxsmanic wrote:
writes:

And no, it is not possible to breathe water, you can only breathe
gases, if you want to be pendantically, semantically correct.

Water is breathable if there is enough oxygen in it, although the effect on
lung tissue over long periods of breathing a liquid has not been determined.
There are some therapeutic uses for techniques similar to this.