I leaped for the door to escape from the suffocating cloud.

Ammonia and chlorine can form suffocating clouds of gas if they escape.

There was a sound like a thunderclap, and down from the sky rained a suffocating, yellowish cloud of gas.

A suffocating cloud pressed around both of us, but it was Foster they went for.

A huge, suffocating cloud seemed suddenly to be hovering above Lindsey's head.

It was dark as midnight, for the Smokies had all run together into a great suffocating cloud.

At its worst early last week, the fire forced the evacuation of hundreds of people in the area because of suffocating clouds of toxic smoke.

The warped door squealed as I stepped through into a suffocating cloud of smoke.

Two of the others tore down the ragged drapery, great sheets of black serge that sent up the dust in a suffocating cloud.

Then the suffocating cloud, the heat would move in, weighing down the air and we would go outside hoping to be able to breathe more easily.