Diving Bells - How to Save a Person From Asphyxiation

Asphyxiation is not the only concern, the pressure on the human body caused by being this far underwater without any protective equipment can also be deadly. An expert named Christine Cridge, who works for the Diving Diseases Research Center, was consulted on Harrison's rescue. She says if he descended directly from a hundred feet to the sea surface, it's likely he'd have had cardiac arrest or at best serious neurological issues. So after the divers pump Harrison with air and help him get into diving equipment, including an oxygen mask, they lead him out of the air pocket and then they make their way through the tugboat into the ocean. And then once they get outside of the boat in