The odor of sulfur hung in the air when he struck the first match.

A damp odor of moldy wood hung in the air.

A faint odor of Cyanon still hung in the air.

An odor of loam and dead leaves hung in the corridor.

A faint odor of petroleum hung over the water yesterday.

The sour odor of old smoke hung in the air.

The odor of charred wood still hung faintly in the air.

The odor of furniture polish and wax still hung in the air.

The odor of burnt tobacco still hung in the air.

The faint odor of drugs and a broken man's fear hung in the house.