BREATHER FIT - THINK OF IT AS A GYM FOR YOUR LUNGS The Breather Fit is a drug-free evidenced based Inspiratory/Expiratory Respiratory Muscle Training (RMT) device used by and recommended by athletes, fitness enthusiasts, singers, musicians and competitive sports persons. It trains both inspiratory and expiratory muscles independently. LET BREATHER FIT BE PART OF YOUR HEALTHIER, FITTER LIFE! Breathing against resistance during respiratory muscle training (RMT) activates and strengthens respiratory muscles and improves health and quality of life by promoting regained activity and exercise tolerance. RMT was also shown to improve the blood flow to resting and exercising limbs, delaying the metaboreflex, thereby improving exercise capacity and endurance. ATHLETES - BOOST YOUR PERFORMANCE BY TRAINING YOUR RESPIRATORY MUSCLES Strengthening your respiratory power by RMT can greatly contribute to improving exercise capacity and peak performance - and may just provide that little, but crucial advantage in professional sport. Studies have shown that respiratory muscle training (RMT) improves oxygen uptake, VO2max and ventilatory efficiency, improving aerobic fitness. *NOTE* This device is NOT AN INCENTIVE SPIROMETER, and is strictly a TRAINING DEVICE for Respiratory Muscle Training. FEATURES Resistive Inspiratory and Expiratory Muscle Therapy (RMT) Adjustable and independent pressure settings Lightweight and portable Easy to use and clean Free and easy self-paced video training RECOMMENDED USE: For best results, do two sets of 10 reps, twice a day, 6 days per week. It may take up to 4 weeks to feel results, though the deep, slow breathing is known to almost immediately assist in relaxation.