




Featured on:





Research + Citations
Backed By Real Published Science.

RMT improves endurance and cuts breathlessness
Training your breathing muscles can improve endurance performance, boost breathing muscle strength/endurance, and make efforts feel easier (less breathlessness), including in tough settings like altitude. This comes up repeatedly in the applied review for coaches and is backed by controlled work it summarizes.
LINK TO THE RESEARCH
RMT builds stronger breathing muscles that predict higher VO₂ Max
Across competitive athletes, measures of respiratory muscle strength—especially maximal expiratory pressure (MEP)—were significant predictors in models explaining about 51% of the variance in VO₂max/kg. Translation: the stronger your breathing “engine,” the higher your ceiling for aerobic fitness tends to be.
RMT delays a “blood-stealing” reflex from tired breathing muscles (metaboreflex)
When the breathing muscles fatigue, the body can reflexively redirect blood toward them and away from your legs/arms, which hurts performance. RMT seems to toughen those muscles so they fatigue later, blunting this reflex and helping you keep more blood flow for working limbs.
RMT improves performance across many sports — from endurance to combat disciplines
Across multiple studies, respiratory muscle training (RMT) produced measurable improvements in both aerobic and anaerobic sports. Swimmers increased their underwater distance and stroke efficiency after inspiratory training, while cyclists and runners experienced faster recovery and reduced perceived effort during intense exercise. Even athletes in strength and endurance hybrid disciplines like judo and cross-country skiing showed that stronger breathing muscles correlated with higher VO₂ max and greater power output. In simple terms, whether it’s long races or short explosive bouts, stronger lungs consistently translate into better performance.
RMT strengthens the diaphragm and core, improving posture and movement
Slow, controlled breathing through trained muscles doesn’t just affect performance — it also improves recovery and mental calm.
RMT enhances parasympathetic activation (the “rest and recover” system), helping athletes relax faster, sleep better, and manage pre-race stress.
RMT strengthens the diaphragm and core, improving posture and movement
Respiratory Muscle Training (RMT) improves how efficiently you breathe when oxygen demand is high — like during intense workouts, sprints, or training at altitude. Research shows that athletes with stronger respiratory muscles use less oxygen for the same effort, meaning their bodies stay calmer and more efficient under stress. This training delays the point where you start gasping for air, maintains steadier oxygen delivery to your working muscles, and keeps fatigue at bay for longer. In short, RMT helps you stay in control of your breathing — and your performance — even when the pressure peaks.
Excellent 4.6 | 60,000+ Customers
Stronger Lungs & Endurance in Just Minutes a Day with FITAIR
Boost Endurance & Stamina: Train the breathing muscles that power your performance and recovery.
Feel the Difference Fast. Notice improved control and stamina after just a few short sessions—no gym or equipment needed.
Maximize Oxygen Efficiency: Improve airflow control for longer, stronger workouts.

PUSH PAST YOUR LIMITS.
Finally push past that wall that’s been holding you back. FITAIR helps you train the muscles behind every breath—so you can perform stronger, recover faster, and breathe easier in every workout.


TRAIN THE SAME.
PERFORM BETTER.
Both groups trained identically — but only one added FITAIR PRO. By strengthening the respiratory muscles, Athlete A extended endurance by up to 35%, proving that smarter breathing leads to stronger performance.

PRECISION DESIGN.
POWERFUL RESULTS.
Crafted for comfort and stability, allowing a natural, secure fit during every breath session—no slipping or irritation.
Smoothly controls resistance to ensure consistent air pressure and balanced muscle engagement with every inhale.
Progressively increase difficulty as your lungs grow stronger—just twist and train at your own pace.
Designed for confident handling, even during intense training or sweaty sessions.

User reported results after 30 days of breath training with The FITAIR PRO.
98%
Increased Stamina & Endurance.
91%
Decreased Fatigue & Shortness of Breath.
88%
Better Sleep Quality.
90%
Decreased stress and anxiety.
96%
Reduction of Asthma & COPD Symptoms. (Those who suffer from)
Based on a random customer survey 30 days post purchase with 2000+ participants.
60,000+
FITAIR Users.
(Featuring The Original FITAIR PRO Model)
FAQs
What is breath training & how does it work?
(Please read the scientific evidence outlined in the drop downs above.)
The FITAIR PRO strength trains the respiratory muscles via breath resistance. A process scientifically referred to as Respiratory Muscle Training (RMT).
In addition to RMT, The FITAIR PRO also doubles as a breathwork practice due to the controlled breathing exercises. We refer to the combination of both as breath training.
Stronger respiratory muscles provide several benefits, including improved breathing efficiency, reduced breathlessness, and enhanced oxygen delivery to the body's tissues. This leads to better overall physical performance and endurance, especially in athletes.
For individuals with respiratory conditions such as COPD or asthma, stronger respiratory muscles can significantly alleviate symptoms, making daily activities easier and improving quality of life. Additionally, enhanced respiratory muscle strength can aid in quicker recovery from respiratory illnesses and help maintain lung function as we age.
Respiratory muscles are typically only strengthened through intense prolonged cardiovascular exercise. Therefore, strength training your respiratory muscles allows you to quickly and easily improve your physical fitness and overall well being.
Furthermore, it is possible to achiever a higher degree of respiratory muscle strength with RMT than with just cardiovascular exercise alone because of the added resistance. It is the same principle as strength training your skeletal muscles with added weight vs only body weight. For example, you will not be able to achieve the same degree of strength with bodyweight squats as you can with weighted squats. This is why even the most conditioned endurance athletes can benefit from breath training.
How do I use it?
All you need is 5-10 minutes a day breath training with your FITAIR PRO device.
*Best practices, detailed routines, and methodologies are outlined in our free eBook.*
Step 1: Insert the mouthpiece into your mouth as you would a mouthguard.
Step 2: Stand or sit comfortably in an upright position maintaining good posture.
Step 3: Twist the resistance adjustment knob at the end of the device to achieve your desired level of breathing resistance.
Step 4: Perform 2 sets of 10 full deep breaths. Work your way up to 2-4 sets of 30 breaths over the course of 2 weeks.
Note: Breath training can be performed simultaneously with various exercises. This is considered an advanced technique and we recommend this to people who are already conditioned athletes. Otherwise, we advise completing the 30-day regimen outlined in our eBook first.
How often should I use FITAIR?
Just 5–10 minutes per day is enough to build real results. FITAIR is designed to fit into any routine — use it during warm-ups, post-workout recovery, or even on rest days.
Is it difficult to use?
Not at all. Simply adjust the resistance wheel to your comfort level, breathe through the mouthpiece, and feel your lungs work harder with each controlled inhale and exhale.
Is this right for me?
The FITAIR PRO is a safe effective option for people of all fitness levels to improve respiratory health, athletic performance, and overall wellbeing.
The lungs are one of the most vital organs of our bodies. Training the muscles that support them should not be overlooked.
Whether you are an athlete looking to gain an edge, a sufferer of lung ailments, or simply someone who wants to feel their best. The FITAIR PRO is right for you.
Is this safe for beginners?
Absolutely. FITAIR lets you start at light resistance and gradually increase as your breathing muscles strengthen. It’s completely safe, non-invasive, and recommended by coaches and physiologists for controlled respiratory training.
Is FITAIR only for athletes?
Not at all. While athletes love it for endurance and recovery, everyday users benefit just as much. Whether you’re a runner, lifter, cyclist, or just want to breathe deeper and feel more energetic — FITAIR adapts to your level.
Can it help with running, cycling, or combat sports?
Definitely. FITAIR helps athletes in all endurance and high-intensity sports build stronger breathing capacity. You’ll feel more control on climbs, during sprints, or in the final rounds of a match — when every breath counts.
Can it help with stress or anxiety?
Yes. Strengthening your breathing muscles and practicing controlled breathwork helps calm your nervous system. Many users find that it improves focus, relaxation, and sleep quality over time.
How long does it take to see results?
FITAIR PRO users have reported noticing improvements in as little as 3 days. The more you train the better results you will have. Just like weight lifting and cardiovascular exercise, improvements from breath training will compound over time, and slowly diminish after cessation. Gains can be sustained by breath training only 3 times a week. FITAIR PRO is designed to last a lifetime. A small one time investment for forever benefits.
What results can I expect?
With regular use, you’ll experience:
- Improved stamina and endurance
- Faster recovery between workouts
- Better focus and control under pressure
- Reduced shortness of breath and fatigue
What if it doesn't work for me?
We promise you will see improvements! Just like any form of exercise, if you stick with it, you will see improvements. However, in the unlikely event that you do not see experience improvements, we offer a 90-Day money back guarantee. Please reach out to our customer service and one of our team members will assist you with a refund no questions asked. Service@FITAIRPRO.com
Can breathing actually improve performance?
Yes — research in journals like the Journal of Applied Physiology and British Journal of Sports Medicine confirms that respiratory muscle training improves oxygen efficiency, delays fatigue, and enhances endurance. Stronger breathing muscles mean more energy and control under pressure.
Is there real science behind this?
Yes. Over 30 years of research has shown that respiratory muscle training increases endurance, improves recovery, and reduces perceived effort during exercise. FITAIR applies the same proven principle in a simple, reliable form.
What makes FITAIR different from other breathing devices?
Unlike bulky tech-based trainers or restrictive masks, FITAIR uses pure mechanical resistance — no batteries, no glitches, and no false “altitude” gimmicks. It’s simple, durable, and scientifically proven to build real lung strength safely.
What if it doesn’t work for me?
We stand behind our product with a 90-day money-back guarantee. If you don’t feel noticeable improvement in your breathing or performance, you’ll get a full refund — no questions asked.
Does it replace regular cardio training?
No — FITAIR complements your workouts. Think of it as resistance training for your lungs. It makes your cardio more effective by improving how your body uses oxygen, so you perform better in every session.
How do I clean it?
It’s easy. Simply rinse the mouthpiece with warm water and mild soap, then let it air dry. FITAIR is built from high-grade silicone and ABS materials for hygiene and durability.
ENDLESS RESEARCH BACKED BENEFITS
Better Sleep Quality
Reduces Fatigue
Strengthens & Tones Core
Decreases Stress & Anxiety
Improves Asthma Symptoms
Boosts Stamina & Endurance
Better Overall Respiratory Health
Improves COPD Symptoms
Reduces Congestion
Improves Recovery
Tones Facial Muscles
Improves Shortness of Breath
Better Sleep Quality
Reduces Fatigue
Strengthens & Tones Core
Decreases Stress & Anxiety
Improves Asthma Symptoms
Boosts Stamina & Endurance
Better Overall Respiratory Health
Improves COPD Symptoms
Reduces Congestion
Improves Recovery
Tones Facial Muscles
Improves Shortness of Breath
90-Day money back Guarantee.
If you are not satisfied with the results within 90-days, please reach out and one of our team members will happily assist you with a refund.
Email: Service@FITAIRPRO.com  | ![]() |
Others |
---|---|---|
Lifetime Warranty |
||
Custom Design |
||
Free eBook |
||
Affordable |
||
Backed by Real Science |
||
Used by Coaches & Athletes |
||
90-Day Money-Back Guarantee |
