Boost Oxygen Canned 4 Portable 10 Liter Natural Oxygen Canister Bottle with 1 Menthol Eucalyptus Pocket Sized Pure Canned Oxygen Bottle Canister

It is wonderful in an emergency. I call it my sons emergency crutch

Really provides a pop of pure oxygen if you are having health issues or an emergency. Everyone should have a spare bottle in a handy place at home.

Good to have on hand

Got these portable oxygen canisters because I’d used them previously. But the first three cans very quickly got where there was little pressure dispensing the oxygen out. When I used them before, they always had good pressure. These either were a manufacturer defect, or possibly sat too long in a warehouse somewhere. Either way, I was very disappointed in what I otherwise thought was a good product. They’re easy to use especially if you have sP02 issues if you need a quick boost (no pun intended). But given my expeience on these, I’d be reluctant to purchase again.