Seven people died due to house fires caused by smoking last year, the fire service has said.
The Northern Ireland Fire and Rescue Service attended 69 accidental blazes linked to the habit.
Group commander Kevin O’Neill said the risks should not be underestimated.
“Unfortunately our firefighters witness first-hand the damage and devastation caused by fires in the home started by smoking materials.
“These types of fires can spread rapidly and within moments through a house.
“Property can be replaced but a life cannot.
“Giving up is obviously the best way to reduce the risk of a smoking-related fire, however we appreciate for some smokers kicking the habit can be extremely tough, therefore I would remind them to be extra careful if they are smoking or disposing of smoking materials in their home.”