air conditioner
air conditioning

If we sat here much longer I'd have to turn the air conditioning back on.

What would you do during the summer months without your air conditioning?

Air conditioning became available for the first time since 1942.

The 'air conditioning was either turned off or out of order.

Especially in the summer, when the windows are up for air conditioning.

There was no air conditioning, and I couldn't get to sleep at all.

I had not even heard the air conditioning speed up.

Yet it was an important event in the history of air conditioning.

As always, the air conditioning in the new federal building had failed.

Despite the air conditioning, the room felt warm, but I didn't want to go out again.