>>419
In the most general sense, air conditioning can refer to any form of technology that modifies the condition of air (heating, cooling, (de-)humidification, cleaning, ventilation, or air movement). In common usage, though, "air conditioning" refers to systems which cool air.


common usage では冷房を指すが、the most general sense では冷暖房両方。
「ACは冷房だけプギャ〜〜〜〜！！！！」厨はもう来なくていい。