JUANSHI® Lung Exerciser - Deep Breathing Trainer &Lung Trainer Oxyfit Breathing Device Portable Resistance Breathing Aids for Lungs Respiratory Trainer Power Breathe Lung Flexer Lung Cleanse (Black)

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  • TRENGTHEN YOUR LUNGS The JUANSHI Lung Exerciser is a stamina-building lung trainer that utilizes restrictive breathing techniques to enhance your lung capacity. The thing's perfect for your lungs, improving your cardio, and building your stamina and endurance like crazy.
  • DAILY IMPROVEMENT Experience noticeable changes with regular use. Better function and better support. Nice addition to your training program or workout routine.
  • ADJUSTABLE RESISTANCE Easily adjust the resistance level using the knob to suit your individual needs. Simply place the trainer in your mouth, take deep breaths, and feel the immediate difference in your lung capacity. Enhance your breathing efficiency with each use.
  • PERFECT FITNESS GIFT This well-built deep breathing device is great for improving exercise tolerance and enhancing your performance day by day. Perfect choice for athletes, singers, smokers, etc.

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