We believe that Ozone is entirely necessary, as it is a very useful and almost essential in all those places where this problem occurs. Logically we can overlook it and turn a blind eye without worrying, but we will certainly be making a serious mistake. The production of ozone is completely compatible with the human presence. In fact, it is very beneficial as we will breathe pure oxygen without substances that alter the quality of environment (mites, bacteria, viruses, bad smells).