What oxygen device stores pure oxygen so that the concentration of inhaled oxygen is increased?

What oxygen device stores pure oxygen so that the concentration of inhaled oxygen is increased?

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

Answer: (A)

Storing oxygen for inhalation to raise the concentration delivered relies on a reservoir that captures oxygen during exhalation and then releases it on the next inhalation. The Oxymizer is designed with an integrated reservoir in the cannula setup. When you breathe out, oxygen from the flow fills the reservoir; on the next breath, that stored oxygen is drawn in along with the ambient air, boosting the fraction of inspired oxygen without needing to increase the flow. This makes it more efficient than a standard nasal cannula and can deliver a higher FiO2 at the same flow. The other devices don’t use this reservoir mechanism. A nasal cannula provides oxygen without any storage, so the delivered FiO2 depends on the flow and your breathing pattern. A Venturi mask uses a jet design to entrain room air and deliver a fixed FiO2, not storing oxygen. A simple mask covers the face and increases FiO2 relative to a nasal cannula, but it also lacks a reservoir to conserve or concentrate oxygen.

Storing oxygen for inhalation to raise the concentration delivered relies on a reservoir that captures oxygen during exhalation and then releases it on the next inhalation. The Oxymizer is designed with an integrated reservoir in the cannula setup. When you breathe out, oxygen from the flow fills the reservoir; on the next breath, that stored oxygen is drawn in along with the ambient air, boosting the fraction of inspired oxygen without needing to increase the flow. This makes it more efficient than a standard nasal cannula and can deliver a higher FiO2 at the same flow.

The other devices don’t use this reservoir mechanism. A nasal cannula provides oxygen without any storage, so the delivered FiO2 depends on the flow and your breathing pattern. A Venturi mask uses a jet design to entrain room air and deliver a fixed FiO2, not storing oxygen. A simple mask covers the face and increases FiO2 relative to a nasal cannula, but it also lacks a reservoir to conserve or concentrate oxygen.