... ISO9001, CE certificate,FDA certificateParameters:Net volume: 7000mlConcentration: ≥99.6%Pressure: 0.8Mpadiameter:65mmheight:240mmScope of application:This portable oxygen can ... suits for elderly people, overusing of brain people, high pressure from work,hard to breath people, after sport, on ... oxygen can :Flavor: mint and grapefruit.* OEM is welcome. hot! outside portable oxygen can 7000ml