The Warning Explosion Risk 7221 sign will be prominently displayed in an area where this threat will be known to exist. The sign must be used to inform all people within the area. It should ensure that people are extra cautious and that they take any necessary precautions that may be required.

You may have a duty to protect the health and safety of the people in your building, this sign would help you to that end. It will glow in the dark too, as it is Jalite AAA photoluminescent.

Fixing requires anything as simple as sticky pads, 'No-nails' type adhesive or double-sided tape.