Cost 4 JP
His body can withstand the hazards of depressurization and vacuum exposure. The superhero has total immunity to the physical dangers of decompression or exposure to a vacuum, such as that found in space. His body maintains normal internal pressure no matter how thin the air is beyond his skin. This adaptation offers no protection against overpressure, such as that caused by the crushing depths of the ocean, nor does it supply the superhero with oxygen. The superhero can still asphyxiate if he does not have either a breathable air supply, or the ability to forgo breathing entirely.