• A trio of two of Oxygen Plus's best-sellers (6 canisters total) is ideal for sports enthusiasts and athletes who want an easy-to-carry, on-demand boost of pure recreational oxygen to top off depleted oxygen levels to help optimize energy, performance and recovery. • Includes three (3) O+ Biggi disposable oxygen canisters with an ergonomically-designed breathing mask that delivers oxygen to your mouth with the press of a trigger and three (3) O+ Skinni disposable oxygen canisters with a "tilt-back" top that sprays directly into your mouth or nose. • Each O+ Biggi contains more than 180 breaths (7L) of pure recreational oxygen for natural energy and recovery. • Each O+ Skinni contains more than 50 breaths (3.42L) of pure recreational oxygen for natural energy and recovery. • How to use: Press the activation button as you breath. Inhale 3 to 5 breaths - or as much as you need - for energy and recovery. • Designed, quality-controlled and filled in the U.S.A., Oxygen Plus products are recyclable and made from recyclable aluminum.