What is the purpose of a durable "No Smoking" sign at a fuel dispensing area?

The purpose of a durable "No Smoking" sign at a fuel dispensing area is primarily to prevent ignition of flammable vapors. When fuel is dispensed, it can release vapors that are highly flammable. Smoking or any open flames in close proximity to these vapors poses a significant risk of fire or explosion. Therefore, the presence of a "No Smoking" sign serves as a crucial safety measure to inform individuals that smoking is prohibited in that area, effectively reducing the potential for ignition and ensuring a safer environment for both customers and employees.