Carbon Monoxide is colourless, tasteless, odourless, non-irritating poisonous gas. Often referred to as the silent killer, it removes the victims will to ability to help themselves by starving the body of oxygen.

The Carbon Monoxide forms a very stable bond with the haemoglobin in the blood system thus preventing it from transporting oxygen. As the poison affects the respiratory system it poses greater risk to infants, the elderly and those with existing ailments such as heart problems or lung disease.

The poison is cumulative, so a small concentration of Carbon Monoxide over a long period can prove fatal. The early signs of Carbon Monoxide poisoning include drowsiness, nausea, dizziness and headaches.