Abstract
Air is sent through ducts in the air conditioning of buildings such as offices, restaurants, and laboratories. There are various types of dampers that control the amount of air, and one of them controls the room pressure. It is mainly used in clean rooms, and it is also used to prevent cross-contamination by creating a pressure difference between adjacent rooms. This room pressure control damper directly measures the room pressure and controls the angle of the damper blades so that the room pressure will be the set pressure. This paper introduces the structure and characteristics of the damper, and explains the control of room pressure using it.
