Boost Oxygen Medium Natural 5L Canister, 3 Pack

Good product Mouthpiece mask is comfortable and snug fit. Easy to use.

Light-weight, (like carrying nothing at all) and effective. Good hedge against issues with hiking in high altitudes when you are from a sea-level area. I will buy it again whenever heading to high elevations for hiking.

Ive used this before, good product. My issue was with packaging. 4 loose cans in a big box. Not cool.

The cans will feel empty (they are not)

This is an excellent product for individuals with problems breathing. This can be due to altitude sickness or environmental situations such as smoke or humidity.

For home use the 10 size is better buy. Since certain celebrities got involved in the company the price has gone up considerably. If you need oxygen on a regular basis, buy a Concentrator machine. Boost is for limited home or sports use. 3 stars is because I feel the price is to high.

my kids got altitude sickness and these really helped

I'm a very big & tall guy (6' 9" & 220 lbs), & have spent the better part of 25+ years exercising (both wt. lifting & aerobics), all the while struggling with lung & O2 issues I've had since birth; meaning that no matter how much cardio I do, I will still fall short of those without this condition. I've used O2 tanks (the heavy / hospital variety) & have been on steroidal inhalers to help increase my O2 when exercising, & each of these methods have proven quite effective in maintaining my endurance along-side those who don't have this condition. This said, the prospect of an ultralight O2 delivery method was quite appealing (even over the inhaler). Alas, it's all smoke & mirrors. For those who swear by this product, I'd also like to mention that in hundreds of thousands of case studies, where a placebo was used, the placebo would occasionally perform just as well as the controlled product; e.g. "mind over matter". In my case, since I have a REAL O2 delivery system (e.g. the med-ox regulator), I can compare how it works to this product. Even when using a foam seal (made from pipe insulator) to help "seal" the rim of this product around my mouth, I feel no different than when I breathe without it. By contrast, after running for 30m< &/or huffing & puffing during &/or after an intense cardio workout, both my "O2 tank" & inhaler offer me near-instant O2 relief (with the O2 tank offering my more "satisfactory relief", faster; hence why this product seemed more appealing than my inhaler). Add to this that when I check my pulse oximeter after an intense workout & use my tank or inhaler, my O2 levels out (to normal) pretty fast. My O2 didn't increase OR level out with this product, but rather decreased (I think b/c it is NOT "pure oxygen", & by putting it on my face, thus restricting my high-volume breathing, actually decreased my uptake). In short, if this works for ya... great. But for those looking for a REAL O2 boost, I'd say stick to O2-restrictive masks (e.g. build your endurance the long & steady, but true, way); adjust your diet to accommodate better red blood cell creation &/or O2 uptake; look up breathing exercises; consider a small, light-weight (1< lb, 25 LPM) O2 tank, to use during or after an intense workout as "recovery O2"; &/or talk to your doc about how to boost your blood O2 (especially if you have O2 medical conditions; like me). The take away..............................? It's a nice concept, but ridiculously fails, as it is NOT "95% pure O2", like the manufacturer claims. In a nutshell, you are spending $10+ for a nice-looking, brushed aluminum can... filled with the same level of O2 you can get by stepping outside. For all intents & purposes, you could take a large garbage bag & "capture" the outside air & breathe from that while working out to get the same effect as breathing from this can (for my own "control test", I actually tried this, lol; & both my pulse oximeter & O2 gas detector reflected this result as well ~ just as other reviewers have stated / shown w/ pics).

Me costó adivinar cómo funcionaba porque yo metía la nariz jajajja es solo la boca, te deja un ligero toque mentolado, me parece excesivo el precio y creo q me va a durar poco

رائع جدا

Since my husband has to use his cortison inhaler quite a bit I was looking for a more natural solution in case of an urgent situation. The oxygen helps him immediately and he is able to work in the garden again without running out of energy and breath.

Exelente para una emergencia, recuperar el aliento y poderlo llevar a a todos lados. Me encanto.

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