Lung Exerciser Device, Breathing Exercise Device for Lungs, Lung Expansion & Mucus Relief Device (Blue)

It's the strangest thin! Blowing into this "thing" creates a "bouncing" in my lungs that completely broke up my bronchitis. I suffered terribly until a nurse friend of mine told me about the Flutter Valve. It really works! What I, also, like about it is that it can be used to strengthened weak lungs to help take in deeper breaths. It's great quality and usefulness for the money. It's so easy to use, also.

This is a simple and well made device. It is easy to adjust the resistance and performs better than I thought it would. While it is hard plastic, there are no flimsy parts to worry about.

Fast delivery. Was skeptical as I have tried other devices with poor results. Performs exactly as advertised and further documented in instruction pamphlet. Substantial construction with variable resistance balls and ease of cleaning. Very effective. Pleased with purchase. Would recommend.

This device helps me tremendously. Easy to use and clean.

I ordered this a couple months ago, and wanted to give it a decent trial before reviewing. I think this really works well, and I can feel a difference. It really does loosen up the mucus and hake breathing easier and more effective. I highly recommend it. It is small, lightweight, and very easy to clean. Glad I noticed this item!!