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CO²MAX™

CO²MAX™

$30.00 CAD
$30.00 CAD $44.00 CAD
SAVE 31% Sold out

Enhance your breathing to boost stamina and performance.

  • Elevate your breathing performance
  • Portable and easy to use
  • Customizable resistance levels
  • Enhances lung capacity effectively
  • Durable, comfortable silicone design

Note: You Asked, We Restocked (Again). Limited Supply!

Transform your respiratory health with this innovative lung trainer, perfect for boosting lung capacity and stamina whether at home, at the gym, or on the go.

  • Soft silicone for maximum comfort
  • Portable design for easy travel
  • Adjustable resistance for custom training
  • Perfect for all fitness levels and sports

Question 1: What materials is the device made from?
Answer 1: The device is crafted from soft, flexible medical-grade silicone, ensuring both comfort and effectiveness during use.

Question 2: How do I adjust the resistance levels for my training?
Answer 2: The device features an innovative flow valve that allows for seamless pressure adjustments, enabling you to tailor your training sessions based on your unique lung capacity and fitness goals.

Question 3: Can I use this device for sports other than running?
Answer 3: Yes, this versatile muscle trainer supports a wide array of sports and activities, including swimming, gymnastics, martial arts, and more, making it ideal for various fitness enthusiasts.

We ship worldwide. Orders are dispatched with tracking within 24–48 hours.

  • USA: 5–7 working days
  • UK: 6–8 working days
  • EU: 6–8 working days
  • International: 6–14 days
CO²MAX™

CO²MAX™

$30.00
$30.00 $44.00
SAVE 31% Sold out
View full details
 
 

Control Your Airflow

Dial in resistance to match your level. Increase or decrease airflow to target the respiratory muscles and build real capacity—your pace, your progress.

ADJUSTABLE RESISTANCE
BeginnerIntermediateAdvanced
Current Level
Level 3 — Moderate
Airflow ↓ 40%
Tip: start where it’s challenging but comfortable; nudge the dial up each week as it gets easier.
  • Personalized difficulty — fine-tune airflow to match your session and fitness level.
  • Stronger respiratory muscles — progressive resistance targets the diaphragm and intercostals for real capacity gains.
  • Better endurance & recovery — feel less winded, maintain pace longer, and bounce back faster between sets.
  • Beginner → Athlete ready — one tool that adapts as you improve, no parts to swap.
Typical use
2–3 sets / day
Adjust range
Light → High
Goal
Capacity & stamina

Backed by Science

The HXSTL. Lung Trainer is rooted in proven research. Below are peer-reviewed studies demonstrating the benefits of inspiratory muscle training (IMT) for endurance, strength, and recovery.

Study 1 — Chang et al. (2021)

4 weeks of inspiratory muscle training significantly increased lung strength (112.95 → 131.09 cm H₂O) and reduced 800 m run times (162.97s → 156.75s).

View Study →

Study 2 — Laohachai et al. (2017)

6 weeks of IMT improved inspiratory muscle strength, ventilatory efficiency, and resting cardiac output.

View Study →

Study 3 — HajGhanbari et al. (2013)

A systematic review & meta-analysis confirmed significant performance gains and improved respiratory endurance from respiratory muscle training.

View Study →

*These studies support inspiratory muscle training in general. Individual results may vary. HXSTL. Lung Trainer is not a medical device.*

Join Our Thriving Community of Athletes

Improved Endurance During Workouts

Experienced significant boosts in stamina after incorporating lung exercises into their routine.

96%

Enhanced Breathing Control

Noticed better breath control during high-intensity activities after a few sessions.

93%

Increased Lung Capacity

Reported feeling less fatigued and more energetic during physical activities.

79%

Convenient and Portable

Found it easy to integrate breathing exercises into their daily schedules.

89%

Results based on real studies.

Rated 4.7/5 by 25,200+ Happy Customers

4.7 / 5
Game Changer for My Fitness
Since using the VO2 Max mask, my endurance is on another level. Used to be out of breath by 60 mins, now I'm pushing to 90 easy.
Lucas Ferreira
Serious Progress in 3 Weeks
Sprint speed stayed high all match after consistent training with this mask. Unreal.
Leon Hoffmann
Turned Me Into a Machine
Opponents used to outrun me. Now it's the opposite
Jared

What Future Pros Are Saying

Our 30-Day Risk-Free Guarantee

Experience the benefits of improved lung capacity with complete peace of mind, thanks to our risk-free 30-day money-back guarantee. If you're not completely satisfied, simply return it for a full refund—no questions asked.

Questions? We've Got You Covered

This innovative device allows you to engage in targeted breathing exercises, strengthening respiratory muscles and enhancing diaphragm expansion. By improving breath control and lung function, it helps reduce fatigue, boosts stamina, and elevates your overall performance in various physical activities.

Absolutely! Designed for both seasoned athletes and fitness newcomers, the lung exercise device offers adjustable resistance levels. This customization allows you to tailor your training to your individual lung capacity and fitness goals, making it perfect for anyone looking to improve their breathing.

Yes! Its lightweight and compact design mean you can easily fit it into your gym bag or handbag. Whether at the gym, a park, or even your office, you can prioritize your respiratory health anywhere and anytime.

Crafted from soft, medical-grade silicone, this device molds comfortably to your mouth for a secure fit. Its ultra-flexible design ensures that each breath is enjoyable, making your training sessions both effective and comfortable.

Cleaning is a breeze! The device is designed for easy maintenance—simply wash it with mild soap and warm water after each use. This ensures it stays hygienic and ready for your next breathing session, promoting your health with every breath.