How to adjust the pressure reducing valve of simple breathing airbag

The adjustment method of simple airbag pressure safety valve is as follows:

1. After confirming that the airbag is connected with the oxygen source and the patient interface, open the valve of the oxygen source and start to fill the airbag with oxygen.

2. Observe the change of pressure gauge reading with oxygenation time.

3. Find the pressure regulating screw on the safety valve, turn the screw counterclockwise to increase the gas pressure relief, and turn it clockwise to reduce the pressure relief.

4. Adjust the pressure in the airbag to the normal working pressure range specified in the instruction manual.

5. After reaching the target pressure, close the oxygen source valve and keep the pressure stable. Breathing airbag is an emergency instrument consisting of a mask, a one-way valve, a ball and an oxygen storage valve.