When should the usage of the POB discontinue?

The usage of the Portable Oxygen Bottle (POB) should discontinue when the bottle reaches 200 PSI. This is because 200 PSI represents the minimum safe operational pressure for the POB, ensuring that the bottle still has adequate pressure to provide the necessary oxygen flow to the user. Continuing to use the bottle below this threshold could compromise the functionality of the oxygen delivery system, risking insufficient oxygen supply in critical situations.

Utilizing the bottle until it reaches this specified pressure ensures that it is used effectively and safely, preventing any potential health risks associated with inadequate oxygen supply. This standard practice is essential for maintaining operational efficiency and ensuring the safety of individuals relying on supplemental oxygen.