O2 Blast Oxygen Cans, 10 Liter 6 Pack Pure Oxygen Canisters with Sanitary Flip Top Cap, Portable Supplemental Oxygen for Breathing & High Altitude, Reduce Recovery Time & Increase Oxygen Levels.

I have a portable O2 machine but I don't like carrying it at the flea market so I carry a can of O2 Blast. When I get tired I spray about a half of a breath, three times, and it gives me back the energy I need. Delivery was fast. I ordered on July 27 and the delivery date was stated as between Aug 1 and Aug 5. It arrived on Aug 1

Sports, outdoor and indoor activities. Get a burst of energy. Get a second wind. Better performance. Great value

I do volume on my back squats and I’m always sucking air on the last 3 sets. This stuff seems to help. The six pack of this style top can is only just over $5 a can and each can last for weeks (depending on use). Anything that helps the lift. Buy it.

The official description stinks - the top of the can has a simple valve, not much more than what you'd find atop any aerosol can. There's a protective cap so you don't depress it by accident. You must wrap your lips around the non-ergonomic valve, which is quite easy. The original brand with the fancy "mask" attachment allows lots of air to leak in from the backside (it's not air-tight), and is uses a lot of excess plastic to mold that permanently-attached mask - which also makes it bulky to transport, store, and attracts dust that must be cleaned before use.THIS IS BETTER - if not ergonomic. The cap is small, doesn't waste plastic, and when you wrap your lips on the valve you know you're getting 100% of what's in the can.

Great product but over priced...

THIS ITEM CANNOT BE RETURNED. This item does not come with any kind of mask. Even following The Oxegen you receive is a 50% or less. Since it DOES NOT COME with a mask it is a waste of money to get the 2 types. I wasted money because I bought 6 to share with FAMILY MEMBERS.Manufafacturer should be clear NO MASK. MISS LABLED

Seems more effective than Boost. Downside is aiming into mouth. Much cheaper than boost. May be better in effect!

It needs the mask and you can't buy it separately