Flutter, Medical-Grade Material, Adjustable Resistance(Green)

I picked this up out of curiosity and have been pleasantly surprised. The design feels sturdy but lightweight, and the mouthpiece is comfortable to use. I like that you can adjust the resistance—it makes it easy to start at a lower level and work your way up without it feeling overwhelming. It’s simple to use and doesn’t take much time to fit into a daily routine, which is a big plus. The airflow has a noticeable feedback feel, so you can tell it’s working while you’re using it. Cleaning is also pretty straightforward, which I appreciate. Overall, it feels like a well-made, easy-to-use breathing trainer that does exactly what it’s supposed to without being complicated.

I have a good impression of this product. Well built product and works great for the exercise and drug-free mucus removal needs. My 2 cents below: Pros: - Works great as a exercise device and mucus removal while being drug-free - Has an adjustable resistance dial to control the intensity as per the needs - Easy to use - Works without any battery - Very small in size and portable if you want to take it anywhere with you - Seems very durable Cons: - Not the most reasonably priced but would recommend for the quality and functionality

In my opinion, the flutter valve does not help to eliminate mucus. I still use it because my doctor says I have to.

It is not working properly. It has been returned.

Seems to do the job pretty good