Authorities are warning families not to bring coal-burning devices indoors during winter after 17 people presented to hospital in NSW in one week with carbon monoxide poisoning.
All 17 – nine of whom were children – had been unable to detect rising levels of carbon monoxide within an enclosed space because of its distinct lack of smell or taste.
"Carbon monoxide is a colourless, odourless and tasteless gas that is extremely toxic," said Dr Darren Roberts, Medical Director of the NSW Poisons Information Centre.
READ MORE: This Aussie tree is blooming everywhere - but it could poison you
"People may not know they are inhaling it until it's too late."
Most cases of carbon monoxide occur when charcoal is burnt inside an enclosed space at night for heat, often by bringing a barbeque indoors.
It often involves multiple members of a household and can lead to serious health consequences, particularly for children and the elderly.
READ MORE: Toddler vomiting blood dies after swallowing toilet cleaner capsule
"It is vital that people never burn barbeque coals indoors or in enclosed spaces," Dr Roberts said.
"Barbeques and outdoor heaters should only be used outside, in a well-ventilated area. Otherwise, the results could be tragic."
Symptoms of carbon monoxide poisoning include severe headaches, nausea, vomiting and dizziness. Prolonged exposure often sees people fall unconscious and permanent brain damage can occur.
READ MORE: Underground ravers poisoned by carbon monoxide in Norway
The NSW Poisons Information Centre is urging all residents that if they think someone has been exposed to carbon monoxide to call them on 13 11 26.
In an emergency concerned residents should call Triple Zero (000).
