Once the bacteria have colonized the sequestration, infection can progress because of the lack of normal bronchial drainage
Airway clearance intervention included breathing exercises, bronchial drainage
techniques, coughing, and incentive spirometry.
The Frequenter [TM] provides airway clearance therapy and promotes bronchial drainage
by inducing vibration in the chest walls while useing acoustics to generate frequencies between 20-100Hz, enough to reach a patient's lung resonant frequency.
Variations of this general method became known by terms including bronchial drainage
(BD), percussion and postural drainage (P&PD), and chest physical therapy/chest physiotherapy (CPT).
The generator and hose provide an air pulse flow to the vest that delivers oscillation to clear the airways and improve bronchial drainage