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The Proxima is intended for prescription use only, to be used for adult patients that require supplemental oxygen in a hospital setting.

The Proxima Model-100 is an electronic oxygen conserving device designed for use in a hospital environment. It incorporates a sensitive pressure sensor to detect inhalation, an electronic valve to deliver precise volume of oxygen and a graphical touch screen interface. In pulsed mode the Proxima delivers flows equivalent to 1 to 15 liters per minute of continuous oxygen flow. The volume of each bolus is calculated such that the patient receives the equivalent of the set volume regardless of how slow their breath rate is. To make sure the patient receives oxygen, even if inhalation is not detected, the Proxima automatically changes from pulsed to continuous oxygen flow at the set flow rate if inhalation is not detected for 15 seconds. Proxima displays a warning message to indicate low battery, low oxygen supply pressure, dislodged cannula, lack of inhalation and low nasal airflow. The Proxima is powered using an external 9-volt DC power supply and includes an internal back-up battery. The Proxima is for use with a customer supplied, dual lumen demand nasal cannula, for example the Salter Labs 4807 or similar, to ensure proper patient usage.