... .Small,big-capacity,easy to carry,can be used at anytime,anywhere Portable oxygen canStandard: ISO9001, CE certificate,FDA ... Pressure: 0.8Mpadiameter:65mmheight:240mmScope of application:This portable oxygen can suits for elderly people, overusing of brain people, ... the cover.Structure of the portable oxygen can :Flavor: mint and grapefruit.* OEM is welcome. hot! outside portable oxygen can 7000ml