Boost Oxygen Natural Collection | Large, Medium & Pocket Size | Three Different Can Sizes • No Added Aromas • For Every Occassion

These are marketed to people who hike and climb where they sometimes need a little O2 during strenuous activity. I bought them for a backup O2 supply for health reasons. They can’t be sold for this reason without a lot of testing that would raise the prices. But oxygen is oxygen, and there are no restrictions to its use.

As a regular hiker in the Colorado Mountains, I need extra oxygen to make some climbs. I absolutely love this three pack because I can take a bigger one instead of two small ones or when I go for a heavy push, I bring the big one! If you need to acclimate to altitude, this also works wonders! Very light, non-flavored which I prefer and 100% worth it! Great value for the money! Very easy to use by just putting it up to your mouth and squeezing the trigger with your hand!! Definitely a hiker and high altitude essential!

Easy to use, quick and easy

Great for senior adults after exertion climbing stairs

Great stuff to have available just case!!

Excellent for quick recovery nice to have even if never needed

Boost oxygen is very helpful, no harm.

The smallest one worked one time only.