O2 Blast - Pure Oxygen Supplement, Portable Can Filled with 99.99% Pure Oxygen with Custom Breathing Mask, Energy, Performance, Fast Recovery Time, Ideal for High Altitude & Sports - 10L, 3-Pack

My husband was having shortness of breath and it helped him breathe better while the doctor tried tofigure out what was wrong. It's a little pricey but worth it.

I purchase this to that one mom try it because we had been getting something called boost and it was not quite 97% and yours is 99% and helps her greatly so thank you so much for your product. This time when I ordered the three pack they all three and only had one whole and didn't have the same mouth to where it could fit over her face and had it more than one hole used all three only have one hole they don't have the same face mask on them and one of them doesn't even work it has no oxygen in it and for the price we are very disappointed in that what happened we were so happy with your products and these are just horrible nothing like the first time when we ordered them.

Trash product. Don’t buy! All three cans were completely empty. It is disappointing that I have never received any response in any way about this product. This is also the second time I have tried to review this product as my reviews never show up on Amazon.

I have used Boost oxygen for several years....thought I would try Blast to compare. I found that Boost was better.....my reason was the Boost lasted much longer! Seemed not to be as effective. Not a bad product, but think I will stay with Boost.

I’ve been using canned oxygen for years and understand that the canister is very light. But this 10 L can of oxygen could not have contained 10 L of oxygen. I also use another brand where the can is about the same size and contains 5 L and goes twice as long. The price was a little high on this brand but wanted to give it a try because supposedly twice as much product but Buyer Beware. The product was good quality, but I just feel like I got gypped. As an educated consumer, this is my last time buying this product. Good luck if you try it.

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.

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.

I have been using this item for approximately 3 months. I'm sorry to say this last order I received was not good at all. 4 or 5 cans hardly allowed the product to eject from the can. I'm very disappointed. I was using Blast I may go back to that product. Tony Olla