Ozone (0 ) is a naturally occurring substance found in nature that we cannot live without. Ozone is an activated form 3 of oxygen (0 ) with three atoms where regular oxygen has two. Ozone in the upper atmosphere filters out harmful 2 rays from the sun without which all life on earth would cease to exist. Closer to home ozone is produced by lightning in thunderstorms. I’m sure you have experienced the freshness in the air after a storm. Ozone is very unstable and has an average half life of 20 minutes, this is why ozone must be produced at the point of use and cannot be stored in a container for later use.