Each and every day, our body produces mucus to ease the movement of foreign objects inside our airways. But what happens when our body produces too much sticky and viscous mucus?

In diseases that stimulate too much mucus production, like cystic fibrosis, bronchiectasis and COPD, airway clearance techniques and devices are important to clear your airways.

A flutter valve is a one-way valve used in respiratory medicine to prevent air from travelling back along a chest tube.

A flutter valve device, on the other hand, is a device used by individuals to mobilize mucus and expand airways.

When exhaling into the device, a steel ball resting on a cone begins to vibrate, causing oscillation through the whole airway, which in turn mobilizes sticky mucus.