| Answer | Crossword Clue |
|---|---|
| LOUVERS | Ventilating slits. |
| AIRING | Ventilating. |
| AIRINGOUT | Ventilating. |
| UPTAKES | Ventilating shafts. |
| LOUVER | Ventilating slat |
| LOUVER | Ventilating slit. |
| AIRWELL | Ventilating shaft |
| BLOWERS | Ventilating fans. |
| UPTAKE | Ventilating shaft |
| LOUVER | Ventilating slit |
| TRANSOM | Ventilating device. |
| ADIT | Ventilating passage in a mine. |
| UPCAST | Ventilating shaft in a mine |
| LOUVER | Ventilating slit, as in a car hood. |
