| 1 | The air was filled with a strong odor of gunpowder. | |
| 2 | The smell of disinfectant permeated the operating room. | |
| 3 | The battlefield was littered with debris and the smell of gunpowder hung heavy in the air. | |
| 4 | There is a warm sunshine scent in the air at dusk. | |
| 5 | The room has been closed for a long time, and the air is filled with mold. |