Positive pressure fire air breathing apparatus (self-contained breathing apparatus) is a self-contained open fire air breathing apparatus, which is mainly used for firefighting, chemical industry, shipbuilding, petroleum, smelting, factories and mines, laboratories, etc. Rescue personnel can safely carry out fire fighting, rescue and rescue work in harsh environments full of smoke, poisonous gas, steam or lack of oxygen.
1. When wearing, first disconnect the quick connector (to prevent damage to the full face mask when wearing), and then put the back on the back of the human body (the air bottle switch is below), adjust the shoulder strap and waist belt according to the body shape and fasten it to Fit, reliable and comfortable.
2. Put the long strap on the full face mask around your neck, put the full face mask on your chest before use, so that you can wear it with you, and then connect the quick connector.
3. Place the switch of the supply valve in the closed position and turn on the air bottle switch.
4. Wear a full face mask (without straps) and take 2 to 3 deep breaths, and you should feel comfortable. When holding or exhaling, the supply valve should stop supplying air without a "sizzling" sound. Press the lever of the supply valve by hand to check whether it opens or closes flexibly. When everything is normal, tighten the full-face mask straps to ensure air tightness and comfort without obvious tenderness.
5. After evacuating the scene and reaching a safe place, loosen the full face mask strap clip and take off the full face mask.
6. Turn off the gas cylinder switch, open the supply valve, unplug the quick connector, and remove the respirator from the body.
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