AirPhysio Device for Average Lung CapacityThe AirPhysio Average Lung Capacity Device The AirPhysio Average Lung Capacity Device The AirPhysio Average Lung Capacity is designed for most teenagers and adults looking to improve their day to day breathing who dont have any severe lung conditions. This device has the potential to help slow down the progression and improve respiratory conditions like asthma, COPD, Bronchiectasis, cystic fibrosis, etc Unless you have a severe lung condition or very