Ventilation blowing style: Blow air into the room and clean room air discharged outside the room through the slits of the column by pressure difference.
The method of ventilation blowing type has the advantage that may be granted to the placement of wind necessary, where many people, or excessive heat, excessive humidity, wind speed usually greater rotation. However the downside of this approach is a positive pressure in the room is so spread out in all directions of wind, so it may overflow into unwanted areas.
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