How long does solid-state oxygen last?

How long does solid-state oxygen last?

• A. 5-7 min
• B. 18-20 min
• C. 30-40 min
• D. 60-70 min

Answer: (B)

Solid-state oxygen lasts a finite amount of time because the device stores a fixed amount of oxygen and releases it at a set flow rate. In many portable solid-state systems, a typical delivery rate is around 2 liters per minute. At that rate, the stored oxygen is depleted after about 18–20 minutes, which is why this interval is the standard figure tested. If you were to use a higher flow, the duration would be shorter; at a lower flow, it would be longer, but the 18–20 minute window reflects the common, expected duration for a standard solid-state unit.

Solid-state oxygen lasts a finite amount of time because the device stores a fixed amount of oxygen and releases it at a set flow rate. In many portable solid-state systems, a typical delivery rate is around 2 liters per minute. At that rate, the stored oxygen is depleted after about 18–20 minutes, which is why this interval is the standard figure tested. If you were to use a higher flow, the duration would be shorter; at a lower flow, it would be longer, but the 18–20 minute window reflects the common, expected duration for a standard solid-state unit.