Triangle Waveform Difference Download PDF

More Comfort with Shorter Peak Pressure.

Most vest systems use sine wave technology that increases pressure when a patient takes a deep breath—making the vest therapy feel constrictive. The Triangle Waveform of the inCourage® System is different. It uses a unique air-chopping valve that delivers a “thump” to the chest to loosen, thin and move mucus out of the airways. Active Venting also allows the vest to maintain a constant pressure when the patient takes a deep breath.

More Effective Airway Clearance.

A triangular shaped waveform creates peak pulse pressure for shorter duration than sine wave systems. Shorter durations of peak pressure contribute to improved comfort during therapy.

One study found the triangle waveform pulse of the inCourage® System produced an average volume increase of 20% in mucus cleared – in some cases over 40% – and study participants found it easier to breathe during therapy.9


Exceptional Comfort
“It’s gentle on my stomach, but still gets the job done on my lungs. Much better, more comfortable, and gentle compared to my [competitor] vest. The inCourage System is a lot easier to take a full breath while on it, too.”
— Veronica V., IL
inCourage System Allows a Deep, Unrestricted Breath
"We have two children with CF, and two different vests: RespirTech inCourage and [a competitor] vest. The RespirTech is far superior. By trade I’m an engineer, and have spent hours evaluating both systems. The RespirTech air compression waveform is triangular, versus a sine wave found in other vests. The sharper edge of the triangle wave has been proven to break up mucus better than the less effective sine wave. We've tried three companies' systems, and the inCourage System was the only one allowing a deep, unrestricted breath, where the others were somewhat suffocating."
— Eric F., CA