Australian boat builder unveils tsunami survival pod

The video tutorial explains the construction and features of a safety pod. Made from welded steel, the pod can accommodate up to four people. It includes five-point safety harnesses for occupant protection. The pod is equipped with enough oxygen for 2.5 hours and features crumple zones to absorb impacts. Additionally, it has escape hatches on the top and bottom to facilitate evacuation after a tsunami subsides.

How long can the pod provide oxygen?

What is the purpose of the crumple zones in the pod?