Usage Note
Aération refers to the process of letting fresh air into a space or adding air to a liquid. Grille d'aération means a ventilation grille. The verb aérer is used both literally (to air out a room) and figuratively (to clear one's head): s'aérer l'esprit.
Examples
"Une bonne aération évite l'humidité."
Natural Translation
Good ventilation prevents damp.

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