Natural Aroma 3 Liter Portable Oxygen Canister for Respiratory Support, Aerobic Recovery, and Oxygen Boost (12 Pack)

The order was packaged securely and delivered as promised.

Great for keeping around the house or for on the go.

I almost died from carbon monoxide poisoning from people leaving their cars idling for long periods of time at an old workplace. I bought these since I’m now essentially allergic to car exhaust. I tried the large bottle and it was cumbersome to hold and run by cars, getting to where I need to be. I bought these small cans to carry in my purse. They are almost weightless so you can’t tell how full they are. They also don’t have a gauge so you never know what level or oxygen is left. I go through 1-1 1/2 cans trying to get in to the grocery store and back out. These are dangerous since when I need to depend on them, they may or may not have oxygen left. They are almost worthless since one can seems to last like 20 breaths max. I want my money back.

Wonderful