PURPOSE: A high-frequency chest wall vibrator is provided to discharge mucous secretion in alveolus and an airway by transferring high-frequency air wave into the chest wall of a patient. CONSTITUTION: A high-frequency chest wall vibrator comprises: a vest(10) which wear putted on a patient; an air impulse generator(100) supplying air wave to the air pocket of the vest; and a hose(200) connecting the vest and the air impulse generator(100). The air impulse generator comprises: a chamber shell connecting an air injection hole and hose; a piston pump unit for compressing/expanding the inside air of the chamber shell; a driving unit operating the piston pump unit; a pressure control valve for controlling air pressure; and a one-way valve installed in a air inlet.
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