It is later revealed he used a scuba tank to escape.

That means they can fill their own scuba tanks.

She walked over to the bank of scuba tanks and pulled one free.

His scuba tanks were already refilled in case he had to go down once again.

Many of them can't even swim, much less put on a scuba tank and dive under the surface.

"If you've got a spare scuba tank, I'd like to go down with the men."

The boys put down the scuba tanks, and watched as Jupiter opened the secret package.

She left his scuba tanks in the corner because they were too heavy to lift.

That same dynamic now drives everything from radio shows to web sites to scuba tanks.

They needed to reach the abandoned scuba tanks, a source of much-needed air.