Which device uses a reservoir to concentrate oxygen at the inhalation point?

Which device uses a reservoir to concentrate oxygen at the inhalation point?

• A. Nasal Cannula
• B. Venturi Mask
• C. Simple Mask
• D. Oxymizer

Answer: (D)

The idea being tested is delivering a higher concentration of oxygen by storing it in a reservoir so it’s available for the next inhalation. The Oxymizer uses a built-in reservoir that fills with oxygen during exhalation and then releases a concentrated bolus on the next inhalation, boosting the fraction of inspired oxygen without needing higher flow rates. This reservoir-focused delivery gives more oxygen to the lungs right when you breathe in, compared with devices that provide continuous flow without a stored supply. The other devices rely on steady flow or mixing with room air and do not trap and deliver an inhalation-focused surge of oxygen, so they don’t concentrate oxygen at the inhalation point in the same way.

The idea being tested is delivering a higher concentration of oxygen by storing it in a reservoir so it’s available for the next inhalation. The Oxymizer uses a built-in reservoir that fills with oxygen during exhalation and then releases a concentrated bolus on the next inhalation, boosting the fraction of inspired oxygen without needing higher flow rates. This reservoir-focused delivery gives more oxygen to the lungs right when you breathe in, compared with devices that provide continuous flow without a stored supply. The other devices rely on steady flow or mixing with room air and do not trap and deliver an inhalation-focused surge of oxygen, so they don’t concentrate oxygen at the inhalation point in the same way.