Boost Oxygen Cylinder - Portable Oxygen Cylinder for Breathing Up to 60 Uses | 95% Pure Oxygen Can Promotes Free Breathing, assists Hangovers, Colds, & Revitalizes Lungs (Menthol Eucalyptus -3L)

Small, easy to carry around, light, easy to use, does the job, no taste. I got this for my Mom (who has some minor lung issues) to have when she travelled for a few days to altitude 7800ft. She used it a few times after climbing stairs or exertion to regain her O2 levels (we measured with a pulseoximeter). This product served us well.

For those with COPD problems or other problems leading to shortness of breath, there is no better way to handle the existing situation than to inhale as deep as possible a breath of Boost and hold it as long as possible before exhaling. Your recovery will come with exhaling, and repeating the process if need be. That’s quick relief! The product comes in a pocket sized can with a properly positioned relief valve for easy release of the oxygen. A quality product of maximum value when one is gasping for air!

I usually got the 10 liter. This one hardly lasts at all. For the price, almost not worth it. However, works great for getting oxygen in your system.

I have heart and pulmonary issues. And when I get tuckered out very quickly, a quick short breath of this is a life savor. But do not use it for anything but a quick short breath, like using a inhaler. Convenient and lightweight so easy to carry with you. But I made sure to speak with my medical doctors before I ever used it.

Small and portable but don't last long at all