How to use isolated chemical oxygen self rescuer

step: Move the isolated chemical oxygen self rescuer along the belt to the front of the right ventral side.

Remove the rubber protective cover, pull the open wrench to open the sealing belt of the isolated chemical oxygen self rescuer.

Grasp the shell of the lower-isolated chemical oxygen self-rescuer with your left hand, and throw away the upper shell with your right hand.

Put the strap on your back to unfold and straighten the airbag. Pull out the starter needle, pull out the mouthpiece plug, put the mouthpiece in the mouth, place the mouthpiece between the lips and teeth, bite the tooth pad, and close the lips to ensure reliable air tightness.

Adjust the strap of the isolated chemical oxygen self rescuer to make the self-rescuer suitable for breathing and carrying.

Confirm the safe evacuation direction and maintain a constant speed to evacuate from the disaster site.