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The Vest® Airway Clearance System utilizes High Frequency Chest Wall Oscillation technology to dislodge mucus from the bronchial walls, and mobilizes secretions and mucus from the smaller to larger airways where it can be cleared by coughing or suctioning.

The Synclara Cough System uses mechanical insufflation-exsufflation (MIE) technology to clear secretions from the upper airways.