Air Purifiers offers the best Ozone-free air cleaners to deal with allergy and asthma symptoms, Multiple Chemical Sensitivity and air quality issues such as pollution, cigarette smoke and construction dust. The sterilizing power of ozone is the strongest known element to be used against bacteria, micro-organisms, fungus and certain insect larvae and can therefore be used to eliminate or reduce the hazardous chemicals. The most appropriate environment for the incubation of any kind of bacteria are those places where little ventilation exists, where the temperature is warm and a certain degree of humidity prevails. In aircraft the combination of groups of people, the heating system and perspiration on bodies and in the atmosphere pave the way for the best conditions for bacteria and micro-organisms to multiply.