Smokers have a reduced capacity of 33 ml/year. Christensen EF, Nedergaad T, Dahl R. It's worth noting that we couldn't find any medical research on the AirPhysio device specifically, just the broad class of OPEP devices. If you are having troublequitting smoking, talk to your doctor about smoking cessation programs and products that can help you. To make sure we give accurate, data driven recommendations, each product in our reviews is personally tested. The device removes mucus from the airway and allows the user to breathe normally. AirPhysio is a mucus clearance OPEP respiratory device used for treatment and removal of mucus for treating Asthma, Bronchiectasis, Bronchitis, COPD, Cystic fibrosis, and other ailments. We had to hire a lot of people because of the demand. Even though it is a novel gadget, its safety and efficacy have recently been established. It will not only make the item more valuable, but it will also help remove any mucus and allow you to breathe better. It was a means of marketing proactively and getting out there. AirPhysio, a revolutionary, award-winning and trusted respiratory device, can help your child breathe better.