I was recently asked for some technical information related to PowerLung and I thought, good question! Unfortunately, it’s a bit more difficult to answer. Because PowerLung is not a therapeutic medical device, PowerLung is not permitted to publish any measurement information. But I don’t want to leave you empty-handed. PowerLung users or those considering using PowerLung as part of an exercise or training regimen might be particularly interested in measurements for breathing devices like PowerLung.