Additional information
| Pressure | Low Pressure, Low Pressure, Low Pressure, High Pressure, High Pressure, High Pressure | 
|---|---|
| Face-piece | Large, Medium, Small, Large, Medium, Small | 
| Pressure | Low Pressure, Low Pressure, Low Pressure, High Pressure, High Pressure, High Pressure | 
|---|---|
| Face-piece | Large, Medium, Small, Large, Medium, Small |