Just inhale through IsoBreathe® Lung Exerciser for a few minutes twice a day in a simple breathing pattern as shown in the instructions. As you inhale, the resistance created makes your respiratory muscles work harder, and the harder they work, the stronger they become. As your breathing power improves, the resistance can be gradually increased to provide more resistance with just the twist of a knob.

Whether you're exercising your lungs for sports, fitness, or as rehabilitation after an illness, you'll breathe deeper and more easily than ever.