How long do the benefits last?

The benefits of supplemental oxygen have varying durations, depending on the individual and the benefit. The feeling of alertness and mental clarity has been shown to last several minutes. Often the “feelings” of using supplemental oxygen depend on what you’re doing, your starting blood oxygen level, and how well you are breathing, among other things. Portable and lightweight, you can always top off depleted oxygen levels to optimal when you're on the go.