POWERbreathe Classic Light Resistance (Wellness), Inspiratory Muscle training

POWERbreathe Classic - This is the 1st generation POWERbreathe Inspiratory Muscle Training series (breathing training).
♦ Drug-free & natural with no side effects or drug interactions ♦ Scientifically proven, pressure threshold training technique ♦ Calibrated inspiratory load (light resistance) ♦ Adjustable ‘light’ training resistance (up to 9 adjustable training levels) ♦ Resistor / training level indicator ♦ Fully washable design

POWERbreathe - Breathing Exercise Device, Breathing Trainer and Therapy Tool to Strengthen Breathing Muscles and Help Lung Capacity, Handheld Inspiratory Muscle Trainer - Pink, Light Resistance : : Sporting Goods

POWERbreathe Plus Light Resistance (Wellness)

The science behind inspiratory muscle training - Smart Wellness

POWERbreathe Classic Light Resistance