The oxygen machine for $150 was a somber clue to their world.

He often has to help her with the oxygen machine while she fights to breathe.

Some characters wear painters' masks, others are strapped to oxygen machines.

She says she is now using an oxygen machine.

For several moments the only sound was the muted whistle of Molly's oxygen machine.

She cannot move around because she is connected with the oxygen machine.

The big tanks carried a large supply, and whenever more was needed the oxygen machine would supply it.

The oxygen machine had stopped making Day of the Dead noises all on its own.

The only sound in her room was the hiss of the oxygen machine.

Mostly, she uses the oxygen machine when she goes to bed.