CoughAssist is the only therapy that expels tracheobronchial secretions¹

Modality	Expels Secretions
CoughAssist®	Yes
Intermittent Positive Pressure Breathing (IPPB) Devices	No
Intrapulmonary Percussive Ventilation	No
High Frequency Chest Wall Oscillation	No
Handheld Mobilization Devices	No

". . . chest vibration techniques, no matter how effective in mobilizing peripheral secretions, will not result in their expulsion without an effective cough flow." - Bach JR. Eur Respir J. 2003; 21:385-386.2