How Do People Get Oxygen And Drinking Water Inside A Submarine?

Oxygen is supplied onboard a submarine through pressurized tanks or an oxygen generator, while drinking water is obtained by desalinating seawater.

A submarine is a special ship designed to operate independently underwater for days. The most notable thing about a submarine is that it stays underwater for days. This leads to a natural question – if a submarine is constantly surrounded by water, how does it have enough drinking water for its crew members?

Submarine against evening sky

Even more importantly, how do the crew members get breathable oxygen, the most crucial requirement for human life?

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