In the past deep sea divers had suits with heavy helmets and an air hose attached. There are stories of the air failing. Because of the extreme pressure, they have found nothing

How to become a Commercial Diver

How do cave divers endure the very long hours of decompression in darkness? - Quora

In the past deep sea divers had suits with heavy helmets and an

Vintage Photos Show the Evolution of Deep Sea Diving

Why do deep sea divers have to surface quickly? - Quora

Have divers ever been accidentally abandoned at sea? - Quora

In the past deep sea divers had suits with heavy helmets and an

Dying for Oil. One of the Most Dangerous Jobs in the…

Professional Diver, Issue 5, Summer 2023 by The Magazine