O2 Blast - Pure Oxygen Supplement, Quick Recovery for Exercise and Focus, Sanitary flip top Cap (4 Liter Oxygen Canisters - 2 Pack - Natural)

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.

Anyone who reads this, please understand that I very much dislike writing negative comments about an American Brand and small business, so I don't do this lightly.I've tried other brands of these "O2" or "recovery" type brands of Oxygen and this one just didn't measure up, "for me."I decided to purchase this product due to the image of the O2 content and the compact size containing 4L of O2. They show an image of 99.8% Oxygen but the can itself says it's between 95-99%, so is it 99.8% or is it 95% or is it less?As far as 4L, I'm no expert on pressurized gases, cans and inner coatings, but this product seemed to fall way short of expectations of what 4L of gas should be in light of the claim of 50 breaths which the can claims.The 3 can pack I bought lasted less than One day. I wrote down how many breaths I actually received from the first can. Maybe 10! Only the first 3 were at full depression of the nozzle.What is a breath, how hard do you depress the nozzle and for how long. None of these questions are covered on the directions for use.If you want 50 breaths, do not depress the nozzle to fully, because you will run out after minimal use.So to be fair, all in all these products are for recreational use only and my expectations likely exceeded the purpose of the usage. But claims are claims.

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.

Good value

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 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

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

This is an update to a review I wrote after having an issue with the product.If have to give credit where it’s due.This seller backed his product 100% and fixed my issues.I would have to recommend this seller as he showed integrity and pride in his product.Which is great for exercise or Golf or anytime you need a little breath of fresh air.His pricing is reasonable and the cans fit easily in your pocket.