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The Largest Cylinder Available

When we breathe we spend most of our time breathing out. When a cylinder is used with a continuous flow, most of the oxygen is wasted. A conserver cuts out that waste by providing a precise amount of oxygen at the point of breathing in.
A conserver should only be used with portable cylinders, and it could make the cylinder last up to three times longer. Patients can only use this device if they use nasal cannula.