The Fire Extinguisher Missing 6040 Sign will inform people that a fire extinguisher which should have been in a particular place, is now missing. This would mean that they will have to go to the nearest available extinguisher. It may also encourage the return of the missing extinguisher, if it has been lost. Being AAA photoluminescent, it would glow in the dark.

In a crisis, people would need to know the extinguisher is missing in order to locate an alternative.

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