- Cylinder pressure must not be less than 80% full.
- Check gauge reading regularly. Whistle will sound at 55 bar +/- 5 bar.
- When whistle sounds, exit and go to safe area, by shortest and safest route.
- Do Not remove equipment until in safe area, clear of hazard.
After use:
- Press reset lever to switch ‘Off’ positive pressure.
- Press and hold down the button and remove the demand valve.
- Removing mask: Insert index finger behind the tabs on the neck straps and press the buckles forwards with thumb, pulling the mask forward off your face and then up and back over your head.
- Close cylinder valve and remove face piece.
- Unbuckle waist belt, lift shoulder strap buckles to loosen, remove equipment.
Additionally following checks should be carried out: