Expand-A-Lung (Pack of 3) | The Original, Est. 2004 | A Breathing Fitness Exerciser Device | Expiratory Inspiratory Muscle Oxygen Trainer | Increase Lung Capacity, Improves Sleep, Fitness & Respiratory Therapy

Why should you purchase this item? Because it's the device that will help you grow your potential by reducing fatigue and improving cardiovascular endurance. Comfortable, portable and easy to use, the breathing fitness exerciser is the ultimate device to enhance inspiration and expiration intensity. Some of the amazing features of this product: The premium breathing fitness exerciser will help you increase your endurance a The mouth piece is made with flexible medical grade silicone for more comfort Additionally, the device can be used for elevation training It has an adjustable resistance valve that will help stegnthen your diaphragm muscle The device is portable and travel-friendly, measuring no more than 4" The respiratory exercise is made in the USA, following strict standards You are backed by a 60-day money-back policy ADD TO CART NOW and increase your endurance with the amazing lung exerciser!