The city would never keep us locked up without air.

They couldn't last more than a minute or two without air.

A few short minutes without air, and it would all be over.

Still, it's quite a time to be without fresh air.

He can survive in space without food, water or air.

Nor can any of the three other elements exist without air.

He could live minutes without air but only seconds with a broken neck.

He thrashed a lot longer than I thought any human could without air.

But no one had ever managed very long without air.

But how would he send out a voice message without air?