150 reviews

LungFlex Breathing Trainer

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Breathe Stronger, Perform Better

The LungFlex Breathing Trainer is a scientifically-designed respiratory fitness device that strengthens your lungs and breathing muscles in just minutes a day. Whether you're an athlete looking to boost endurance, recovering from illness, or simply want to breathe easier during daily activities, this trainer delivers measurable improvements in lung capacity and breathing efficiency.

Key Features

Adjustable Resistance: Multiple resistance levels let you progressively strengthen respiratory muscles
Dual-Function Design: Trains both inhalation and exhalation for complete respiratory fitness
Clinically Proven: Based on respiratory therapy techniques used by medical professionals
Portable & Lightweight: Fits in your pocket or gym bag for training anywhere
Easy to Use: Simple breathing exercises take just 5-10 minutes daily
Hygienic Design: Removable, washable mouthpiece for clean, safe use

Benefits You'll Experience

Increased lung capacity and oxygen intake
Reduced breathlessness during exercise and daily activities
Improved athletic endurance and performance
Stronger diaphragm and intercostal muscles
Better breath control for singing, public speaking, or meditation
Support for respiratory recovery and rehabilitation

Perfect For

Athletes training for endurance sports (running, cycling, swimming)
Singers, musicians, and public speakers
Anyone recovering from respiratory illness
Seniors looking to maintain lung function
People with asthma or COPD (consult your doctor first)
Yoga and meditation practitioners

What's Included

1x LungFlex Breathing Trainer
Adjustable resistance dial
Washable mouthpiece
Protective carrying case
Exercise guide with breathing protocols

Specifications

Resistance Levels: Adjustable from low to high intensity
Material: Medical-grade BPA-free plastic
Dimensions: Compact, pocket-sized design
Cleaning: Dishwasher-safe mouthpiece
Suitable For: Ages 12+ (consult physician if you have respiratory conditions)

How It Works

Just like lifting weights strengthens your muscles, breathing against resistance strengthens your respiratory system. Use LungFlex for 5-10 minutes daily—inhale and exhale through the device while it provides controlled resistance. Start at a comfortable level and gradually increase resistance as your lungs get stronger.

Why You Need This: Strong lungs aren't just for athletes—they improve every aspect of your life. Climb stairs without gasping, play with your kids without getting winded, or push through that final mile with confidence. LungFlex is used by professional athletes, singers, and anyone serious about respiratory health. In just weeks, you'll notice easier breathing, better endurance, and improved overall fitness.

✔️ Increase lung capacity by measurable percent

✔️ Reduce breathlessness during exercise quickly

✔️ Improve recovery between sets and sprints

✔️ Strengthen respiratory muscles for daily tasks

I noticed deeper, calmer breathing after using this regularly for a few weeks. It helped during morning runs and when I needed to relax after stressful days, giving me a steady sense of control and more endurance overall.

William Q.

Shipping Information

We offer tracked and insured shipping for all of our orders. Order processing takes 1-3 business days before shipment.

Return Policy

We love our products and are confident you will too! That's why we are offering a 30-Day, Risk-Free Trial. If you are not in love with your results, we will give you a refund.

Struggling with shortness of breath during exercise

Use the adjustable resistance to build lung capacity over weeks. Notice easier runs, longer sets at the gym, and fewer gasps after stairs or sprints with consistent daily use.

Turn weak breathing into dependable stamina and confidence

Adjustable resistance builds lung strength over time, reducing breathlessness and improving recovery for workouts and daily activities.

🏃

Endurance

Run longer with steadier breathing and faster recovery.

💪

Strength

Increase respiratory muscle power for harder training sessions.

Breathing trainer instructions showing inhale to expand chest and exhale to contract chest technique

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Capacity

Expand usable lung volume for deeper, fuller breaths daily.

⏱️

Recovery

Reduce breath downtime after sprints or heavy lifting.

Why LungFlex Breathing Trainer Stands Out

LungFlex uses adjustable resistance and simple progressive training to deliver measurable breathing improvements. Others are fixed or gimmicky; LungFlex gives real daily stamina gains and faster workout recovery.

LungFlex Breathing Trainer

Others

Adjustable

Durable

Portable

Effective

Affordable

Woman using breathing trainer on treadmill showing removable design, adjustable resistance, food-grade silicone and respiratory muscle training

See fast, measurable breathing improvements with training

97%

Reported that shortness of breath during exercise decreased noticeably

96%

Experienced quicker recovery after sprints and high intensity sets

95%

Noticed deeper, calmer breathing during daily tasks and workouts

Feeling winded while doing everyday tasks

Train deep, efficient breathing to lower breath rate and recover faster. Walk uptown, carry groceries, or climb stairs with less fatigue and more steady breathing.

Common Questions About Your Breathing Trainer

Clear answers to help you start training confidently and safely

How often should I use the trainer?

Start with two 5-minute sessions daily and increase to 10–15 minutes as you improve. Consistent short sessions deliver steady gains in lung capacity and stamina.

Is it easy to adjust resistance?

Yes. Twist to increase or decrease resistance to match fitness level. Simple adjustments let you progress without extra equipment.

Will it help my running or cycling performance?

Yes. Strengthening respiratory muscles helps you keep a steady pace longer and recover faster between intervals or hill efforts.

Can I travel with it?

Absolutely. Lightweight and compact design fits in a gym bag or carry-on so you can maintain breathing training on the road.

Is it safe for beginners?

Designed for gradual progression, it’s safe when used as directed. Start low, follow recommended sessions, and stop if you feel dizziness or discomfort.

30-Day Money-Back Guarantee on LungFlex Breathing Trainer

Try LungFlex risk-free for 30 days. If you don’t notice easier breathing, better workout recovery, or improved stamina, return it for a full refund. We built this guarantee so you can test real breathing improvements without worry.

What customers are saying now

Real feedback from real buyers

Andrew C.

Verified Buyer

Works well for focused breathing practice; resistance levels help me build capacity slowly and safely over time.

John P.

Verified Buyer

Feels solid, adjustable resistance is handy for steady progress.

James R.

Verified Buyer

Breath control improved fast, noticeable difference in stamina.

Christopher M.

Verified Buyer

Helped me breathe better during workouts, gave me a little more endurance each week.

Daniel K.

Verified Buyer

Noticed reduced breathlessness on stairs after regular use for two weeks, pretty happy.

Mark W.

Verified Buyer

First week was awkward but stuck with it, and now my breathing feels more controlled during sprints and intense sessions.

Kevin D.

Verified Buyer

Compact, adjustable, and effective; I used it during recovery and it helped clear my lungs faster and reduced shortness of breath during light activity.

Joshua A.

Verified Buyer

Was skeptical at first but it actually makes breathing exercises feel purposeful, I breathe deeper and relax faster after sessions.

Scott V.

Verified Buyer

Solid tool for anyone wanting to build respiratory strength, easy setup, and I liked tracking small gains each week for motivation 😊

David S.

Verified Buyer

Pretty good, simple to use and feels sturdy.

Edward J.

Verified Buyer

I do daily sets before workouts and on rest days; the gradual resistance change made each session feel productive and gave me measurable improvement in breath control.

Anthony H.

Verified Buyer

Using this before runs helped me hold pace longer and recover quicker between sets, worth the effort.

Steven N.

Verified Buyer

Gave it to my dad for his breathing therapy and he said it helped his confidence and walking pace, noticed fewer pauses when climbing stairs.

Matthew B.

Verified Buyer

Super simple design, easy to clean and fits in my gym bag.

Brian F.

Verified Buyer

Funny at first, felt silly using it in the living room, but after a month I can tell my stamina improved on long bike rides and my breathing is steadier when I push hard.

Robert L.

Verified Buyer

Took a week and breathing felt deeper and calmer.

Michael T.

Verified Buyer

Love it!