วันอาทิตย์ที่ 9 พฤษภาคม พ.ศ. 2553

Air Conditions






An air conditioner (often referred as to AC) is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The cooling is done using a simple refrigeration cycle. In construction, a complete system of heating, ventilation, and air conditioning is referred to as "HVAC." Its purpose, in a building or an automobile, is to provide comfort during either hot or cold weather.

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