95% PURE OXYGEN: All-natural, prescription-free respiratory support that can be used by anyone, anytime, anywhere for non-medical purposes. Breathe Better! PINK GRAPEFRUIT AROMA: Boost Oxygen BALANCE is 95% pure oxygen infused with fresh and tangy Pink Grapefruit aroma. The light and citrusy aroma is known to uplift mood and refreshen the senses. CONVENIENT, LIGHTWEIGHT, AND RECYCLABLE: this 4-pack of Boost Oxygen comes with portable oxygen canisters for on-the-go lifestyles that are completely recyclable. Each canister contains 5 liters. HEALTHY ENERGY FOR YOUR BODY: Every cell in the human body requires oxygen to function properly. Boost Oxygen provides supplemental oxygen to support healthy brain and cellular function. MADE IN THE USA: Boost Oxygen, the most trusted brand and worldwide leader in supplemental oxygen canisters since 2007, directly manufactures every canister at our headquarters in Connecticut. Our products are backed with a 100% quality guarantee. As Seen On Shark Tank.