Air Breathing Apparatus Lung Demand Valve

Brief Introduction:

Principle of The demand valve:

There is big diaphragm valve inside as the self-balancing system, automatically

tracking users’ breathing actions, provide the on-demand supply and ensure 

that pressure inside the mask higher than external environment.

The square manual turnoff button in front of demand valve can turn off the demand

 valve against the outputting air flow to stop air supply. And it will automatically starts 

by the suction at inhalation.

At the bottom is the manual force air supply button, it can automatically supply air 

when press this button if manual shut-off button fails, secondly, once users do not 

feel the air supply sufficient and touch this, air flow output will be increased 

automatically. In addition, it allows the out flux of some not-used-up air pressure 

in medium pressure hose thus to easily checkand disassemble the quick connector.

Features of The Demand Valve:

* Streamline design with elegant appearance and no hindrance in vision.
* Manual turnoff valve easy to operate.
* Comfortable breath with little resistance.
* Simple operation and convenient use.
* Ensure large flow and safe air supply by using manual force air flux button.
* The shell adopts flame retardant and high-strength engineering plastics.