O2 BLAST OXYGEN -The cells in our bodies need oxygen to stay alive. O2 Blast Oxygen reduces the energy needed for respiration which reduces recovery time. ALL OCCASIONS - Portable oxygen is well known to restore your oxygen levels at high altitudes, reduce recovery time and increase stamina. O2 BLAST can be helpful for any active, daily task. Whether you are suffering from jet lag, working late, taking a long drive, working out or recovering from a late night out, keep an O2 BLAST canister close by. LIGHTWEIGHT Toss it in your gym bag or a hiking backpack for adjusting to altitude, performance and recovery for active individual and team sports like hockey, football, biking or basketball. AMERICAN MADE - Our oxygen canisters are produced, quality-controlled and filled in the U.S.A. O2 Blast uses vacuum sealing to ensure all impurities and existing air is removed from the can before filling it with pure aviators oxygen. ENERGIZE YOUR BODY - Each can delivers over 180 1- second inhalations of 99.7% oxygen to your body. 99.7% Pure Oxygen - NEW and IMPROVED Larger 10 liter cans.