Pure Oxygen Supplement, 10 Liter Portable Can with Custom Breathing Mask for Respiratory Support, Elevate Oxygen Levels & Reduce Recovery Time, for High Altitude & Sports Recovery (3)

Not as advertized

Easy to use Nice have on hand, esp with heart problem. It’s nice to have some O2 on hand to clear my head

I know if you have enough 02 in your blood, your body doesnt add more, so wasn't surprised it didn't do much for me. But was for my husband who smokes alot, who said it didn't do anything for him either. It also made my lungs feel a little different, like a vape did when I tried it once. Won't be buying again

One can out of the 3 pack worked well and expelled oxygen from the lever. The other 2 cans are sporadic and not effective. I will call for replacement.

This seems to help when I'm working in the yard or hiking in the mountains. If I feel tired and out of breath I take three shots of Oxygen and ready to go again. I think this is a good product for high elevations.

ideal for people with breathing problems