O2 Blast - Pure Oxygen Supplement, Portable Can Filled with 99.99% Pure Oxygen with Custom Breathing Mask, Energy, Performance, Fast Recovery Time, Ideal for High Altitude & Sports - 10L, 10-Pack

Quick delivery great product

O2 BLAST in blue. BOOST Oxygen in green. The O2 BLAST mouthpiece is too big. It doesn't fit snuggly and seal against my face. Air leaks out the sides. The BOOST Oxygen mouthpiece fits perfectly. It's smaller. Has a better fit, a better design. No leaks. I put in for a refund due to a defective item and was given an unpaid postage slip. I'm not paying shipping cost for garbage. I sent a notice to the third party vendor via Amazon's refund link. It's 48 hrs later and I haven't heard boo outta them, so this purchase is a lesson learned. I'll eat this one and shop Walmart more I guess. Buyer beware of the product AND this vendor, plus the fact that Amazon left me hanging in the wind.

Good quality product.

I purchased another brand before this order. It seems the other brand not only lasted longer but the pressure coming out was greater throughout the life of the cannister.

The good news is there's oxygen in these containers, and that's all of the good news, other than it being cheaper than the Boost brand. I bought a 10 pack of this brand due to the lower cost, but as others have noted, the part covering your face doesn't unless you have a really large face, and I'm on the normal side, so the oxygen leaks out around the sides and there's no fixing this engineering/design flaw. Plus the flow coming out is not anywhere as strong as in the Boost canisters. So I learned my lesson and won't buy this brand again. It is really a case of getting what you pay for, and I was trying to save 4 bucks a canister (10 liter size) but it wasn't worth it.

great for when they do not want to process an O2 prescription for out of towners

If I could give this product a ZERO I would!!!!! This product would leak all the air out! And the mouth piece is HUGE! I contacted the seller and he accepted the return and deducted from my refund $32!!!! What a rip off!

These don't work as good as Boost.