So nourishment, cleanliness, and ventilation are the main remedies.
Standing on tiptoe, I glued my eyes to the narrow slit which was our only ventilation.
Three small round holes had been pierced into the styles for ventilation.
Except for a barred transom over the door, there was no means of ventilation.
All the heat used ought to be concerned in ventilation, and in that only.
Not a window was open, and not an aperture for ventilation could be seen!
The ventilation was so bad that the two friends were forced to give up the game.
In a library building, the heating and ventilation are of prime importance.
This he gained in safety, and found that it had been left half open, for ventilation.
No window was discoverable, and not even an opening for ventilation purposes.