Stragen's lute took up a very old air, and he began to sing again.

As you exhale, see the old, stagnant air leaving your body.

The corridor was unlit and smelled of old wet air.

Just stirred up the same old air, made a lot of racket.

Same old hot air, meanwhile the number of kids dying on the streets creeps upwards.

Plain old ordinary air has a density of 0.00120 g/cm3.

My friend tries to give me his old world-as-usual air, but he could never hide an emotion.

"Exchanging breath" is a slow, unhurried process of breathing out old air and taking in new.

Adela looked very sad, but without any of her old helpless and hopeless air.

Both of which were built among the remains of the older air force buildings.