Portable Oxygen Tank 2-Pack – 99.5% Pure Supplemental Oxygen with Mask & Tube, Lightweight & Easy to Use – Perfect for Sports, Travel, Wellness & High Altitude Support，Oxygen Therapy

Claro que sí lo recomiendo

This is the 2nd time I ordered these for a small dog with a collapsed trachea. I am very disappointed. Opened the second canister yesterday and used once. The canister is dead after one use.

Just what I needed for emergency.

Excelente

I bought these for my father in law and only got a few days of use because 2 of the 4 cans I bought were empty,but he did like them when they worked.

Very good for quick use, but am disappointed in the amount of Oxygen provided in canister. . .don't think I got more than 5 min worth.

This is a very bad product , you only attach 1 end either to the mouth piece or the cylinder. 1 end comes with an attachment the other end has nothing.

Not sure about this. I would take maybe 12 full breaths, throughout per day, while gently releasing oxygen into my mouth and into lungs.1 canister lasted 5 days. So my guess is 60 full breaths per canister.