Training Devices

These are devices that train or assist breathing rather than deliver medication.

They do two different jobs. An OPEP device, which stands for oscillating positive expiratory pressure, is breathed out through. It creates a vibration in the airway that helps loosen mucus so it can be cleared more easily. An incentive spirometer works the other way, you breathe in through it, and it gives you something to aim at so you take slower deeper breaths than you otherwise would.

Which one is appropriate, and how often it should be used, is a decision for the doctor or physiotherapist managing your care.