They had an air supply for a couple of days.

His space phone had turned on with the air supply.

The effort used up even more of his air supply.

Maybe that was also the answer to the problem of air supply.

His space phone had come on, too, when its air supply began.

Officials said their air supply would run out on Friday morning.

A man who realized too late that his air supply was gone.

"Do you at least know if the suit has an air supply?"

The air supply of the isolated control room would last at least through those 5 or 6 hours.

It took only a few moments more to cut off the man's air supply.