What is the duration of Oxygen Bottles (Portable System) on the High setting?

What is the duration of Oxygen Bottles (Portable System) on the High setting?

• A. 156 minutes
• B. 60 minutes
• C. 78 minutes
• D. 90 minutes

Answer: (C)

Oxygen duration depends on two things: how much oxygen is in the bottle and how fast it’s being delivered. The High setting delivers more oxygen per minute, so the bottle depletes faster than on lower settings. For the standard portable oxygen system used in this context, that higher-flow setting lasts about 78 minutes. That’s why 78 minutes is the best answer. The other values would correspond to different flow rates or bottle sizes that aren’t applicable here, so they don’t fit the scenario.

Oxygen duration depends on two things: how much oxygen is in the bottle and how fast it’s being delivered. The High setting delivers more oxygen per minute, so the bottle depletes faster than on lower settings. For the standard portable oxygen system used in this context, that higher-flow setting lasts about 78 minutes. That’s why 78 minutes is the best answer. The other values would correspond to different flow rates or bottle sizes that aren’t applicable here, so they don’t fit the scenario.