Boost Oxygen Pocket Size Natural 3L Canister | Respiratory Support for Aerobic Recovery, Altitude, Performance & Health (3 Pack)

If I could give 10 stars for these I would! We went to Colorado over spring break and we are from Oklahoma. I put one of these in my small purse I had underneath my jacket and let me tell you it was a lifesaver. It was so easy to use and really helped us breath when we were on the mountain skiing or even just walking around. They are the perfect size for "on the go"

Boost oxygen is an inexpensive alternative to regular oxygen tanks. Oxygen tanks are more expensive if not ordered by your doctor AND covered under insurance. A little extra oxygen can give a boost to the human body when something causes you to be short of breath.This product is easily portable and small enough to carry in large pockets, a satchel, or a purse.Check travel regulations prior to using it for travel or a vacation.

The three cans are great to have and keep one in your gym, one in the kitchen and so on. The cans are cute and small but I'm not sure if the three combined equal one regular can. Seems like the regular can has more puffs. For convenience though it's great.

Small enough to keep in my bag. Works well for me.

This product essentially works on the Coandă effect and Bernoulli’s principle. When you press the lever, air shoots out of the canister in a small, fast stream. This creates a sort of pressure vacuum that pulls a lot of air from OUTSIDE the canister, through the gap underneath the lever, into your lungs. To you, it feels like a huge breath of air--because it is--but most of that air is not the pressurized O2 from the canister. Most of it is the same air you were already breathing.If you'd like to test this, light incense (or light a candle and blow it out, to fill the air with smoke). Put the canister nearby, create the seal around your lips as the product directs, press the lever down, and breath in. You'll get a lungful of smoke.I used a plastic bag and duct tape to create a seal around the lever, preventing any outside air from getting in. The difference was stark. I was able to take a TOTAL of three shallow breaths before the entire canister was empty. I noticed no difference whatsoever in the quality of the supposed O2, except that it tasted vaguely stale and chemical.You don't need to do any experiment to conclude all this, by the way. It's pretty simple math. The tiny canisters contain three liters of O2, which they claim is sufficient for 60 one-second breaths. The average lung capacity of an adult is six liters--2x one canister.This product is crap.

Not helpful for COPD

It is really helpful in boosting your 02 levels when lower than normal as an emergency situation.

This product is great ! I used it and you can’t believe how much it helps you !