Which device is used to regulate oxygen flow and ensure safe delivery by reducing pressure from the cylinder?

Which device is used to regulate oxygen flow and ensure safe delivery by reducing pressure from the cylinder?

• A. Regulator
• B. Flowmeter
• C. Humidifier
• D. Oxygen Concentrator

Answer: (A)

The regulator is the device that reduces the high pressure inside the oxygen cylinder to a safe, usable level and provides a controlled delivery of gas. By attaching directly to the cylinder valve, it lowers pressure to a working range and often displays gauges so you can monitor remaining cylinder pressure and set the desired flow with a control knob. After the regulator, a flowmeter is typically used to dial in the precise liters per minute, but the actual pressure reduction happens in the regulator. The other options don’t fit: a humidifier only adds moisture to the gas, and an oxygen concentrator generates oxygen from air rather than delivering it from a high-pressure cylinder.

The regulator is the device that reduces the high pressure inside the oxygen cylinder to a safe, usable level and provides a controlled delivery of gas. By attaching directly to the cylinder valve, it lowers pressure to a working range and often displays gauges so you can monitor remaining cylinder pressure and set the desired flow with a control knob. After the regulator, a flowmeter is typically used to dial in the precise liters per minute, but the actual pressure reduction happens in the regulator. The other options don’t fit: a humidifier only adds moisture to the gas, and an oxygen concentrator generates oxygen from air rather than delivering it from a high-pressure cylinder.