Caution: This Room Is Protected by a CO₂ Fire Extinguisher System Safety Sign (M171) emergency exit left where relevant

where relevant

Use where the junction spacing is close enough to create combined risk

Danger: No Smoking

Fuel and chemical zones where “Smoking of Tobacco is harmful” reduces ignition risk

Caution: This Room Is Protected by a CO₂ Fire Extinguisher System Safety Sign (M171) emergency exit left where relevantThe Caution: This Room Is Protected by a CO Fire Extinguisher System sign (M171) is a custom sign used to communicate a clear, site specific message at the exact point where it matters. Purpose and function This sign warns of the specific hazard described, Caution: This Room Is Protected by a CO Fire Extinguisher System. It helps people recognise the risk early, and reduces the chance of delayed emergency response and restricted evacuation.