Boost Oxygen Pocket Size Natural 3L Canister | Respiratory Support for Aerobic Recovery, Altitude, Performance & Health (1 Pack)

Great product, it’s easy to use and increases energy levels. It smell like nothing. It also is easy to use, it will keep emitting O2 until you let go. It shipped fast and got here quick. Thanks

Really helps me when I need just a brief shot of o2 with my emphysema, especially if I am out shopping. With this product that I can carry in my purse I don't always have to take my portable o2 concentrator.

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.

I USE THIS PRODUCT EVERY DAY AT THE GYM AFTER MY WORKOUT TO RECOVER MORE QUICKLY. WONDERFUL PRODUCT. I STRONGLY URGE YOU TO BUY THIS PRODUCT IF YOU ARE PHYSICALLY ACTIVE!

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.

These work fine for what I need them for, an illness, but I wish there was more product in the container. You only get maybe 8-10 shots and it's empty.

Perfect for someone needing an oxygen boost when having trouble beathing. Recently went on a trip and visited a mountain top. Found the air too thin for me. Wish I had this with me then. Am prepared for next time now.

Little bigger than pocket size. I learned to start breathing in as soon as valve was pressed. It does help.