An air conditioner or system of air conditioners.
The state of temperature and humidity produced by an air conditioner.
The replacement of stale or noxious air with fresh.
The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.
An exchange of views during a discussion.
The mechanical system used to assist breathing.
The public exposure of an issue or topic.
The mechanical system used to circulate and replace air.