Ozone is a germicide which occurs naturally in the earth’s atmosphere. Ozone has the ability to oxidize or destroy contaminants without leaving chemical residue. Ozone can be used to sterilize the air and destroy odours, bacteria, fungus, mould and mildew. Ozone is formed naturally in the atmosphere by combining UV light and oxygen. It can also be produced through the use of ozone generating equipment. Ozone purification systems are used in the restoration industry to destroy odours and sterilize the air. Ozone is particularly useful to remove odours from fire and death scenes. It can also be used to remove odours from premises affected by rotten meat after a fridge failure or burnt meant after a cooking accident.