CapnoTrainer®
Real-Time Biofeedback for Real Breath Progress
Because guessing your way to better breathing only works... until it doesn’t.
Stop Guessing. Start Breathing Smarter.
Most people think they’re breathing “just fine.” But when you see what’s actually happening with CO₂ levels in real time, everything changes.
The CapnoTrainer gives you honest, moment-by-moment biofeedback so you can stop guessing, start refining, and build real breath fitness.
Whether you’re a breath coach, clinician, athlete, or just curious about how your breath really works—this is the fastest way to figure out what helps, what doesn’t, and how to move forward with clarity.
5% off w/ Coupon Code: BYT5
What Is the CapnoTrainer?
The CapnoTrainer is a small, powerful device that measures your end-tidal CO₂—that’s the amount of carbon dioxide you exhale at the end of each breath. It provides live biofeedback so you can see the physiological effects of your breathing patterns and practices.
This isn’t just for dysfunction. It’s for discovery. Use it to:
- Improve performance, recovery, and focus
- Support nervous system regulation and stress resilience
- Understand how your breath responds to different techniques
- Teach breathwork with science, not guesswork
Whether you’re a professional or simply curious about your own breathing, the CapnoTrainer turns invisible patterns into visible data. In just moments, you’ll see exactly how your breathing influences oxygen delivery, energy, and mental clarity—empowering you to make precise, effective changes. It’s your bridge between breathwork theory and measurable results.
Which One Should You Buy?
Let’s not over-complicate this. Our Recommendation:
Go Basic CapnoTrainer + Starter Kit = everything you need to get started.
- Reliable and (relatively) affordable
- Perfect for breath coaches, health pros, and curious humans
- Includes sensor, cable, software, and enough cannulas to get going
If you’re a data geek or need more advanced features (like exporting data, managing multiple clients, or clinical integrations), the Professional model is there for you.
Compare options at Better Physiology if you want to nerd out.
Why We Use It at Breathe Your Truth
I’ve worked with Olympic athletes, world-class runners, and everyday folks dealing with pain, anxiety, or just trying to feel better.
The CapnoTrainer cuts through the noise. It fast-tracks insight and helps you build breath skills that stick.
While its readings may not meet strict medical-grade standards, the device is incredibly useful for spotting trends over time—and for showing, in real-time, what’s helping and what’s not.
If you’ve read Breathwork Exposed, you know I’m not here for the hype. I’m here for what actually works—and this works. Simple as that.
5% off w/ Coupon Code: BYT5
FAQ: CapnoTrainer Questions You Didn’t Know You Had
What exactly does it measure?
The CapnoTrainer measures your end-tidal CO₂—how much CO₂ is in your exhale. It gives you a clear window into how your breath is affecting your physiology.
Why does CO₂ matter?
It’s not just waste—it’s vital for oxygen delivery, pH balance, circulation, and nervous system function. Too little CO₂ can mess things up. Seeing your levels helps you retrain more effectively.
Can I figure this out on my own?
Yes—and also, some guidance helps. If you’re like most people, a short course or coaching session will fast-track your confidence. You don’t need to be a scientist, but some context goes a long way.
Check out training from Better Physiology or get coaching from Breathe Your Truth
What’s the difference between Basic and Pro models?
Go Basic: Affordable and simple. Ideal for most users.
Pro: Adds data export, advanced software, and clinical tools.
Do I need a CapnoTrainer to learn to breathe better?
Will this help me pick the right breath practice?
Yes. This is the clearest, fastest way to test what’s helping and what’s not. It’s like a truth mirror for your breathwork.
Is this mentioned in the book?
Yep. In Breathwork Exposed, I dive into why biofeedback is the future of smart breath training. The CapnoTrainer makes that future tangible.
Want help using your CapnoTrainer?
You’re not alone. Most people benefit from a little support at the start.
At Breathe Your Truth, we offer 1:1 coaching and breath training options to help you go from: “What am I looking at?” to “Ohhh… this is actually working.”
Get a Deal + Support BYT
Use our affiliate link and coupon code to save 5% on your order—and support Breathe Your Truth at the same time.
Best Setup: Go Basic + Starter Kit (the discount applies to all products)
5% off w/ Coupon Code: BYT5