The CoughAssist device, circuit, and interface are not included.
About this accessory
The CoughAssist T70 is a mechanical insufflation-exsufflation (MI-E) device: it helps clear secretions from the airway by delivering a positive-pressure breath in, then rapidly switching to negative pressure to simulate the flow of a natural cough. It's used most often for people with weakened cough — for example due to neuromuscular conditions.