Because this device was scientifically designed for use while you exercise, the cardiorespiratory workload is much greater, thus you will see a much greater performance response than you would normally see with exercise alone.

* Maximally & Rapidly Increases Lactate Threshold 

* Maximal & Rapidly Increase VO2 MAX

* Maximally Increase Caloric Burn

* Accelerates HR getting you into Training Zone

* Increases Lung Muscle Strength

* Increases Lung Function Efficiency

* Promotes Deep Diaphragmatic Breathing

* Improves Muscle Tissue Oxygenation

* Run Faster, Longer

* Cycle Faster, Longer

* Lift Heavier for More Repetitions

* Breakthrough your training plateau

Only STEALTH Lung Trainer Rapidly Maximizes both VO2 Max and Lactate Threshold.

See Real World RESULTS Examples Below.

Maximum repetitions until failure.

Device not used during baseline, 8, 16 week tests.

Significant pronounced improvements in number of repetitions across all exercises. 

Over 40% improvement in repetitions across all exercises after 8 weeks.

65% to 117% increases at 16 weeks of device usage.
Results will vary pending usage of device, duration of usage of device.

"After 8 weeks using STEALTH device I was able to cycle at 94% of Max Heart Rate for 31 minutes breathing deeply through nose."

"Before using the lung trainer I could not go 10 minutes at that pace." JM

Baseline Polar VO2 Max score was 40, rated very good. 

After 12 weeks of using ALT device, VO2 Max score improved to 50, ELITE level.

Results variable depending overall VO2 Max of athlete at baseline.  Higher VO2 Max athletes have less room to improve while lower VO2 Max athletes have much more room to improve.

Results also dependent upon frequency of using device, resistance level you train with, duration of training, etc.

Use of HR monitor is recommended to maximize training and prevent overtraining.

"If I could have had a device like this when I played in the NFL, it would have been a game-changer." JM

The first and only scientifically designed cardiorespiratory performance improvement device designed to be used while you exercise, or practice for sport specific conditioning sessions.  

By using the device while you exercise the "training load" on you cardiorespiratory system is greatly increased. Thus the benefits and performance outcomes, improvement results are also greatly enhanced.

Because STEALTH Lung Trainer is designed for use while you exercise, your increases in both Lactate Threshold and VO2 Max are significantly enhanced.

Ergo-dynamically designed to be worn comfortably while you exercise or practice your sport allowing for a sport specific workouts and results.

Adjustable Dual Airflow Resistance Technology allows users to dial up airflow resistance to rapidly increase VO2 Max and Lactate Threshold.

See Real World Examples Above.