The Boost Oxygen Sport Canister is the first portable pure oxygen canister created for athletes and fitness enthusiasts. It offers 99% pure supplemental oxygen that is what athletes have been using for decades to increase their performance and recovery during workouts, training and competition. It features orange aroma, specifically Citrus Sinensis, which is the "sweet orange group", that has been independently studied and found to help exercise and performance. Perform your best with the Boost Oxygen Sport Canister! DISCLAIMER: 95% Pure Boost Oxygen is for recreational purposes only, ideal for athletes and sports enthusiasts, older adults, and people at high altitude or in poor air quality. No prescription is needed to purchase Boost Oxygen.