>>48189499Actually the air you exhale from mouth to mouth CPR is around 16% oxygen and 4% carbon dioxide. Still you're more likely to lose a lot of air flow because you're likely not makinh s full vaccum seal with you mouth and you're not even covering the nose.
The whole image is very fantastic, and it's far more unrealistic that they're swimming underwater with their eyes open in salt water, have full visibility, and that they seem to be able to hold their breath for longer than a minute at seafloor levels of pressure.
So take the whole thing with a grain of salt
