Boost Oxygen - Inhale Life! Boost Oxygen is portable 95% pure supplemental oxygen for all-natural respiratory support for sports, working out, yoga and pilates, staying focused and fresh during the workday and for altitude acclimation! Did you know the air you normally breathe contains only 21% oxygen? The majority is 78% useless nitrogen. Boost Oxygen provides nearly 5X the amount of oxygen you breathe! Boost Oxygen is supplemental oxygen and not intended to treat any illness. It is for healthy people looking to enjoy the benefits of supplemental oxygen in their lifestyle.