Ultrabreathelung trainer

描述

The Ultrabreathe is a highly effective inspiratory muscle trainer, providing an easy and convenient means of increasing the strength and durability of the respiratory muscles. It works on the principle of resistance. As you inhale, the resistance created makes your respiratory muscles work harder, and the harder they work the stronger and more durable they become - and as your breathing power improves, the Ultrabreathe can be gradually adjusted to provide more resistance. - improve breathing capacity - increase lung capacity - easy and effective daily use as warm-up - change resistance easily