... oxygen can 1.high purity,portable,green,pure,safe. 2.Small,big-capacity,easy to carry,can be used ... 8Mpadiameter:72mmheight:315mmScope of application:Small size oxygen can suits for elderly people, overusing of brain ... oxygen can :1.take off the cover and mask from the bottle. 2.with the side with ... of the small size oxygen can :Flavor: mint and grapefruit.* OEM is welcome. portable small size oxygen ...