When I first came across the OxyBio Respiratory Trainer, I was curious but skeptical. The idea of training your lungs the same way you’d train a muscle sounded almost gimmicky. Still, I decided to give it a fair try, especially since I’ve been looking for ways to improve my breathing during workouts and reduce that occasional breathlessness after climbing stairs.
First Impressions and Setup

The device itself is compact and straightforward. No complicated apps, no wires, just a clean design with adjustable resistance settings. Right away, it felt user-friendly. The instructions were clear, and within minutes, I was testing my first breathing session.
How It Feels to Use the OxyBio Respiratory Trainer
The first few tries were tougher than I expected. Breathing against resistance feels strange at first, almost like weightlifting for your lungs. But after a couple of days, I started to notice I could push through longer sessions without gasping.
I committed to using it consistently, a few minutes each day. Within about two weeks, I genuinely noticed subtle changes:
- Even at rest, I felt more aware of how I was breathing.
- My breathing felt deeper and steadier during cardio workouts.
- I wasn’t running out of breath as quickly when taking long walks.
What I Liked
- Noticeable improvement: It wasn’t an overnight miracle, but I could clearly feel the difference after consistent use.
- Adjustable resistance: I could start light and gradually make it harder as my lungs got stronger.
- Portable and simple: Tossing it in a gym bag was easy, and I didn’t have to fuss with apps or charging.
The Drawbacks
It’s not perfect, though. The build feels a little basic for the price, mostly plastic, which makes me wonder about long-term durability. Also, if you’re expecting instant results, you’ll be disappointed. It takes consistent effort, and the progress is gradual.
Another thing I noticed: many glowing “user testimonials” online feel scripted or exaggerated. While my results were positive, they weren’t life-changing in the dramatic way some ads make it seem.
What I Think About The OxyBio Respiratory Trainer
Overall, I’d say the OxyBio Respiratory Trainer works, but only if you’re willing to put in the time. It helped me improve my breathing stamina and gave me more control over my lung strength, which made workouts smoother and daily activities less tiring.
Is it worth it? If you’re into fitness, recovering from mild respiratory setbacks, or simply want to strengthen your lungs, yes. But go into it with realistic expectations: this is a tool, not a miracle device.
Conclusion
The OxyBio Respiratory Trainer is a solid, easy-to-use device that can improve breathing capacity with consistent use. It won’t transform your lungs overnight, but for those willing to stick with it, it delivers noticeable benefits.
Check out the Frownies Patch I reviewed earlier.