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Equipped with a robust 1

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Boost Oxygen Natural Portable 5-Liter Pure Oxygen Canister, Menthol (4 Pack) christmas lid toy The unique hook-over feature allowsSimple and safe to use, the Medium Size BREATHE Menthol Eucalyptus Aroma 5 Liter Canister from Boost Oxygen provides supplemental oxygen wherever you need it. It is 95% pure supplemental oxygen which is nearly 5 times the amount of normal air, which is around 21% oxygen. Supplemental oxygen is used by so many people for so many different reasons. From altitude acclimation to athletes to older adults and to anyone experiencing shortness of breath.