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

This breathing exerciser delivers outstanding effectiveness, as its unique pressure mechanism effectively loosens deep seated mucus in the airways, significantly improving sputum clearance efficiency, while the adjustable resistance robustly enhances endurance of the pulmonary muscles. The improvement in energy levels is gradual, and the three level stainless steel ball design allows users to precisely select training intensity based on their lung function, preventing excessive fatigue. The user experience is extremely straightforward, eady to use without power sources. Comfort is satisfying, and the fit has been optimized: the mouthpiece curvature accommodates most mouth shapes, and the nonslip grip provides stable handling. The functionality is exceptionally well designed, with durable materials supporting repeated cleaning and disinfection.

I like how this little device is simple and effective. It has helped loosened mucus when I get exacerbations, and makes breathing exercises easier. Being able to adjust the resistance also helps, and the fact that its size is compact, makes it convenient take anywhere.

I recently purchased this lung exerciser to incorporate into my daily routine, and I’m impressed with how easy and convenient it is to use. The compact design makes it simple to carry around, whether at home or on the go, and I like that it doesn’t require any batteries or complicated setup. The adjustable resistance feature with three steel balls is a great addition, allowing me to gradually increase the difficulty as my breathing capacity improves. I also appreciate the sturdy, medical-grade PC material—it feels durable and well-made. Plus, the transparent design is handy for visually tracking progress during use. I’ve found that using it for a few minutes each day has made me more mindful of my breathing technique. It’s a straightforward and effective tool for anyone looking to practice controlled breathing or build up lung strength over time. Highly recommended for its portability and user-friendly design!

This thing is absolutely amazing for when you have phlem stuck in your chest. I was turned onto this by a friend and it's a must-have for every household! It's easy to use, works right away at getting stuff out of your chest, is cheaper than other treatment options, re-usable, and the bearings come in 3 sizes, so it works based on your needs. It is small and lightweight.

This flutter valve is easy to use and is effective. A great price so you have value for the money you spent. I store it in its box on a shelf with my nebulizer. It does not weight much, and I love the green color.

This is a very strong, sturdy and quality made breathing device. It came well packaged. The instructions are written very clearly and logically. They have a lot of educational information and walk you through how to use the device. I was happy to have found it after I got sick and I was looking for a way to do some deep breathing at home. It's designed so you can see your own progress as you use it which is a nice feature. I can recommend it as an affordable and quality made product.

The product is well constructed. This is not a flimsy device. Easily cleaned . The exercise is very simple but it is effective . After using the device my normally quiet voice is stronger . The device is pricey but effective .

Wow! I got this because of a round of virus that left me feeling like I couldn't breathe deep anymore. From the very first time I used it I could tell a difference. Loosened up my heavy chest feeling and it seemed like it immediately helped me get a better level of sleep. As a senior I have noticed an advancing decline in the depth of my breaths so I am going to use it religiously every day to keep building on the benefits I already so quickly have seen. Highly recommend it because it is so compact, unique in the way it works with the metal balls, easy to have at hand, and so simple to both use and clean.