"I have COPD from vaping and occasionally find myself short of breath. O2 blast is just perfect for airing up my lungs and getting me out of my short air cycle…even when I am not short on air, O2 blast is always good to help me get up and going (like when the dogs want to play or I have some work to get done). I started using O2 blast a couple of years ago and keep it around constantly. It’s my new cup of coffee when I wake up."

"Product works, I use it for mountaineering. I decreased my Summit time by 2 hours on the Middle Teton."