Air supply valve：
Hand-supply valve, small size of the front wider field of vision. The gas is greater than 500 liters / minute, supply valve can be quickly connecting 360°And easy operation.
The air supply valve weights light, has compact structure and is made of the fire impact-resistant material. It can fast connect with the face mask through the string button and fast interface. The air supply valve connects with the pressure gage through the medium-pressure pipeline. When it occurs the disordered breathing on the user, press the black “ON” button and the air supply valve will increase the amount of gas automatically to 450 L per minute (the air supply valve will reach this gas amount within tenths of a second)
The maximum amount of gas: 450L/minute