O2 Blast - Pure Oxygen Supplement - Supports Fast Recovery, Increase Stamina, & Enhanced Focus for High Altitude & Action Sports, Flip-Top Cap - 4 Liter Portable Canned Oxygen - 4 Pack

Gf was having trouble with asthma at work but there's no way we were getting the bigger oxygens in the building. We started going with these snd haven't looked back. Sometimes I'll just go to my locker and take a few hots when I feel like I'm lagging. Super easy to us, just flip the lid, put your mouth on it and breathe in. I'll be ordering more... Regularly.

The size is very deceptive 3 liter 10 liter who knows how much a liter of oxygen. For the price not worth it. The 1st 25 puffs are good then little to no puffs after that. No matter the size of the can.

I'm on Hospice care. I recently had a bad fall, bruising my ribs along with other parts. I'm on Oxygen but when I lay down my bruised ribs will not allow me to take a deep breath. This bottle felt empty and I didn't hear a sound , taste anything or feel any breeze. I thought it was a scam! Not at all. It was like taking a deep breath finally! I know for the rest of my life here, I will always have a bottle near by! Which it came out years ago when I was a runner. The Drs just give you a rescue inhaler. It makes your heart go crazy. My Angels were looking out when I found this page. I encourage everybody to keep these easily accessible. Especially if you do sports! This could be the difference between life and death for someone.

hmm - seems a small amount of O2 for $25...

I always wanted to try these out. Seemed intriguing since I had heard how they pump oxygen into the casinos in Vegas to keep people energized. Also, as a smoker, I thought it couldn't hurt to get an oxygen boost any time. They seem pricey for a can of air, but I thought perhaps this is just more high quality air than that we normally breathe. So, $16 in and I puffed away at the can when it arrived only to experience...nothing. I won't say it didn't have any benefits. They were just the type of benefits not immediately noticeable. The healthy buzz I hoped to get off a few puffs sadly didn't occur. However I might buy these again if I had big pots of money buried in my backyard and could easily afford to spend money on cans of air. Pure oxygen, but still air.

I am a heart patient with COPD and diaphragm partially paralyzed so I experience large swings in my oxygen level.Goal was to have small supply of oxygen when away from my home oxygen.I tested one container by observing oximeter when my O2 reached 89 to 90 I took one deep breath/- the oximeter immediately rose to 95. Second deep breath it went to 98 for a few seconds then settled back to 93.I was able to get 3 uses (6 squirts) with full results. At that time every squirt gave less results. After about 10-12 squirts the can was empty.Bottom line this is a very expensive breath of air. Same effect can be obtained by multiple deep breaths.Everyone’s issues react and results differently

I thought it was a gimmick, but at 72yrs old and still wanting to run 5 and 10ks I couldn't do it without this extra O2 boost

Bought these for our lacrosse team to use during a tournament up in the mountains. They worked great, were easy use and the boys used them to help stay oxygenated in the higher altitude.