Flutter Valve Breathing Exercise Device for Lungs, Portable Lung Exerciser & Mucus Clearance Device, Adjustable Resistance for Mucus Removal

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.

Nice unit with immediate results. Comes with 3 different balls and 2 mouthpieces.

I have tried several other flutter valves and this one is by far the best. I had immediate clearing of mucus. The different size steel balls help to fit to what works for me. Also, I like the additional mouth piece which is included. I would definitely recommend.

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 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.

This product works great for building lung strength and breaking up mucus. You can immediately feel relief after using! Is it the perfect size for easy storage and throwing in your purse on the go. I definitely recommend!

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!!

Easy to use. I have been using everyday since receiving it and so far I feel like it is helping. I can definitely feel change. I also like that I can easily take it anywhere with me.