A breathing trainer is a compact, handheld device that creates adjustable resistance when you inhale and exhale. Think of it as a dumbbell for your lungs — it forces your diaphragm and intercostal muscles to work harder with every breath, progressively building their strength over time.

Unlike cardio exercises that train your heart and legs, a breathing trainer targets the respiratory muscles directly — the same muscles responsible for oxygen delivery to every part of your body.

Respiratory muscle training (RMT) is backed by clinical research and has been used by elite athletes, military personnel, and rehabilitation clinics worldwide.

The OXYFIT Breath Trainer uses a scientifically proven airflow resistance mechanism to strengthen your breathing muscles. At its core is a precision-engineered adjustable valve that creates calibrated resistance on both inhalation and exhalation — forcing your diaphragm and intercostal muscles to work harder with every breath.

You simply place the medical-grade silicone mouthpiece between your lips and breathe normally for 5 minutes a day. The resistance valve controls how hard your respiratory muscles have to work on each breath — similar to adding weight plates on a barbell. As your muscles grow stronger, you gradually increase the resistance to keep progressing.

This principle — called Respiratory Muscle Training (RMT) — is backed by clinical research and meta-analyses showing significant improvements in exercise endurance, breathing muscle strength, and reduced perceived exertion in athletes who train consistently for 4–6 weeks.

The result: your lungs deliver more oxygen per breath, your diaphragm fatigues slower during exercise, and your overall endurance improves — all from a simple 5-minute daily routine.

The OXYFIT Breath Trainer is designed for anyone who wants to breathe better and perform stronger. It's used by runners, cyclists, swimmers, CrossFit athletes, BJJ practitioners, MMA fighters, hikers, basketball and soccer players who want to push their endurance further.

It's equally effective for beginners who get winded climbing stairs and want to rebuild their respiratory fitness. Weekend warriors, aging adults looking to maintain lung capacity, and anyone recovering from periods of inactivity will benefit from consistent use.

The adjustable resistance means the device meets you at your current level — whether you're a complete beginner or a competitive athlete chasing marginal gains.

Consistent use of the OXYFIT Breath Trainer delivers several measurable benefits.

First, it increases lung capacity and breathing efficiency — meaning more oxygen reaches your muscles with less effort. Second, it strengthens the diaphragm, which delays the onset of respiratory fatigue during intense exercise. This directly improves athletic endurance — you can run longer, lift harder, and recover faster without gasping for air.

Third, stronger breathing muscles reduce perceived exertion, so the same workout feels easier over time. Beyond performance, users report improved focus, reduced stress and anxiety through better breath control, and deeper, more restful sleep.

For a complete breakdown of breathing techniques, resistance protocols, and performance tips, check out our free e-book "A Practical Guide to Mastering Your Breath" — included with every OXYFIT Breath Trainer purchase.

Most users train once in the morning as part of their daily routine and optionally add a second session before workouts as a respiratory warm-up.

Consistency matters more than duration: 5 minutes every day will deliver better results than 20 minutes twice a week.

Our free e-book "A Practical Guide to Mastering Your Breath," included with your purchase, contains a complete day-by-day training schedule with progressive resistance levels to help you get the most out of every session.

Most users notice an initial difference within the first 1–2 weeks of consistent daily use — typically a feeling of deeper, easier breathing and less breathlessness during moderate activity.

Measurable endurance improvements generally appear within 4–6 weeks, which is consistent with clinical studies on respiratory muscle training.

By week 8–12, the improvements compound: longer runs without gasping, faster recovery between sets, and noticeably better stamina in everyday activities like climbing stairs or playing with your kids.

The device also works as a rapid lung activator right before physical activity. Just 60 seconds of resistance breathing is enough to "wake up" your diaphragm, open your airways, and get your lungs firing at full capacity before you even start moving. Think of it like dynamic stretching — but for your respiratory system. Athletes who warm up their breathing muscles report that the first few minutes of exercise feel significantly easier and more controlled.

Results depend on consistency, starting fitness level, and proper progression of resistance. The free e-book included with your OXYFIT Breath Trainer outlines a structured training protocol so you know exactly when and how to increase resistance for continuous improvement.

No — they're two different tools designed for two different purposes, and each one targets a unique aspect of your respiratory performance.

The OXYFIT Breath Trainer is a resistance-based device that strengthens your diaphragm and intercostal muscles through calibrated airflow resistance on both inhalation and exhalation. Think of it as weightlifting for your lungs — it builds raw breathing muscle strength, increases lung capacity, and improves oxygen delivery over time. Best used daily for 5 minutes as a standalone respiratory workout.

The OXYFIT Training Mask, on the other hand, restricts overall airflow to simulate high-altitude training conditions. This forces your cardiovascular system to adapt to reduced oxygen availability — improving your VO₂ max, oxygen efficiency, and mental toughness under stress. It's designed to be worn during workouts, runs, or cardio sessions to make your body more efficient at using the oxygen it gets.

In short: the Breath Trainer builds stronger breathing muscles. The Training Mask trains your body to perform better with less oxygen. One builds the engine, the other teaches it to run on less fuel.

For maximum results, many athletes use both — the Breath Trainer daily to strengthen respiratory muscles, and the Training Mask during workouts to push cardiovascular adaptation. That's exactly why we offer the Lung Trainer Pack bundle that combines both devices at a significant discount.

Absolutely. The OXYFIT Breath Trainer is designed with an adjustable resistance dial that allows you to start at the lowest setting and increase gradually as your respiratory muscles adapt.

There is no risk of oxygen deprivation — you breathe normally, just against gentle resistance. This makes it safe and comfortable even for people with no prior experience in breath training.

If you feel lightheaded during initial use, simply lower the resistance and take shorter sessions until your body adjusts. The device is made from medical-grade, BPA-free silicone for complete safety.

Beginners will find step-by-step guidance, warm-up routines, and a progressive resistance schedule in the free e-book "A Practical Guide to Mastering Your Breath" that comes with every order.

Yes — and running is one of the most common use cases for the OXYFIT Breath Trainer.

Here's why: during a run, your diaphragm fatigues before your legs do. When this happens, your body triggers a reflex called the respiratory metaboreflex, which redirects blood flow away from your legs and back to your breathing muscles. The result? Your legs feel heavy and you slow down — not because your legs are tired, but because your lungs gave out first.

By strengthening your diaphragm and intercostal muscles with the OXYFIT Breath Trainer, you delay this reflex. That means more oxygen reaching your legs for longer, less breathlessness per mile, and the ability to maintain pace deeper into your run.

Pro tip: use the Breath Trainer for just 60 seconds before your run as a respiratory warm-up. This activates your diaphragm and opens your airways so your lungs are already working at full capacity from the very first stride — no more "gasping through the first mile" while your breathing catches up to your legs.

Runners consistently report shaving time off personal records and feeling "in control" of their breathing instead of fighting it.

Both timing options offer benefits, but the ideal approach depends on your goals.

Before a workout — use the OXYFIT Breath Trainer for 60–120 seconds as a respiratory warm-up. This activates your diaphragm, opens your airways, and primes your breathing muscles for the effort ahead. Just like you wouldn't squat heavy without warming up your legs, your lungs perform best when they're activated before intense effort. Athletes who warm up their breathing report that the first few minutes of exercise feel noticeably easier — no more struggling to "find your rhythm."

After a workout or on rest days — use it for a full 5-minute session as dedicated respiratory strength training. This is where the real long-term gains happen: building raw diaphragm strength, increasing lung capacity, and training your breathing muscles to fatigue slower over time.

For maximum results, we recommend combining both: one dedicated 5-minute session per day for strength building, plus a quick 60-second lung activation before every intense training session.

You'll find detailed pre-workout and post-workout breathing protocols in our free e-book included with your OXYFIT Breath Trainer.

Respiratory muscle training (RMT) is one of the most-studied breath training methods in sports science. Independent meta-analyses through early 2025 consistently show:

• +18–36.7% increase in inspiratory muscle strength (MIP) across populations
• −38–42% reduction in subjective breathlessness on the Borg exertion scale
• −5–12% reduction in the oxygen cost of breathing at high exercise intensity
• Measurable diaphragm thickness change within 4 weeks of consistent training

Typical protocol in published studies: 50–80% of max inspiratory pressure, 3–5 sessions per week, over 6–8 weeks.

Read the full list of cited studies on our science page →

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