The oxygen dosage has a valve between the mask and the reservoir, which rises on inhaling and goes down on exhaling.
The masks have two side holes and sealed valves on both sides which retain the oxygen and CO2 output.
It is attached at base to a reservoir and one side is connected to non toxic PVC hose.
- Patient’s ventilation
- Severe cases, when necessary to avoid the aspirated gases mixing. To provide maximum inhalation of pure oxygen