ventilate

Short definition from Wiktionary

Verb

1. 1
   To replace stale or noxious air with fresh.
2. 2
   To circulate air through a building, etc.
3. 3
   To provide with a vent.
4. 4
   To expose something to the circulation of fresh air.
5. 5
   To expose something to public examination or discussion.
6. 6
   To provide manual or mechanical breathing to (a patient).
7. 7
   To breathe.
8. 8
   To shoot with a firearm; to pierce with bullets.