When the air reached the end of the circuit, in the stalls, it was extracted from the building.

"By the time that air reaches the vents, it should be clean."

Up the face of the hill, sucking air, throat dry, wondering when I would reach the top.

In essence, though air could still reach him, he had been buried alive.

Just light and air, changing all the time, moving through places that words won't reach.

The cold air later reached the eastern half of the continent at the end of the week.

Fresh air had not reached this spot for a long time.

Therefore the water level has to be kept relatively high so that no air can reach these foundations.

If no air could reach his lungs by means of nose or mouth, another channel must be provided.

The air also reaches internal areas of the building through doors and corridors.