In fact, the TSA screened over 4,000 scuba tanks at airport checkpoints across the United States in 2019. This indicates that a significant number of divers are already traveling with their gear ...

With the increased pressure, the O2 can be added to a SCUBA tank that contains high pressure ... absorbtion in the blood – increasing a divers safe time at depth underwater.

She had previously observed the lizards using a bubble underwater. When threatened by a predator, these lizards dive beneath the surface and create a bubble over their heads to breathe.