These types of questions and the confusion which often surrounds Ozone can be effectively dealt with through a better understanding of the nature of Ozone itself.
Ozone is created by electrically charging oxygen.
It is true that Ozone is often associated with smog however it is not the cause as is often believed. The very nature of Ozone and how it works will explain both the smog phenomenon and the ability of Ozone to be such a powerful natural sterilizer and deodorizer. The most important property of Ozone is that it has a very short life span. The half-life of Ozone is approximately 7 to 20 minutes. In other words, strong odors will use more Ozone and light odors will require less Ozone.