Boost Oxygen is a brand that sells portable canisters containing 95% pure, concentrated oxygen. They market these canisters for a variety of uses, including:

Improving athletic performance and recovery
Alleviating symptoms of altitude sickness
Enhancing mental clarity and focus
Reducing fatigue and jet lag
How Does Boost Oxygen Work?

The idea behind Boost Oxygen is that by inhaling concentrated oxygen, you can increase the amount of oxygen delivered to your cells. This, in theory, could lead to various health benefits.