Bacteria, fungi and other microorganisms embed themselves in air conditioning evaporator cause an unpleasant smell filling the cabin of the car during the first several seconds of the air conditioning. In addition, for many people fungi and micro-organisms cause sneezing, lacrimation, coughing or other untoward allergic reactions and may cause infection.
Evaporator, usually mounted under the dashboard, is integrated with the ventilation system of the vehicle. Often in such a way that the car sucked air passes through it always, regardless of whether the air conditioning (cooling) is enabled or disabled. Moisture from the cooled air that condenses on the evaporator and the lack of light are ideal conditions for the growth of bacteria, fungi and other microorganisms. They are reaching to the evaporator together with dust from sucked outside air and settle on shield plates of the evaporator heat sink. From there through the ducts they fill the interior of the car.
Regular air conditioning ozonation destroys bacteria, spores, fungi, and microorganisms. If this is done properly, does not cause any side effects. From the air conditioning and ventilation system treated with ozone are not emited any more ugly smell. Ozone treatment also removes odors, which are sometimes filling the interior of the car. For example, cigarette smoke. Odors often accumulate on upholstery, seats, floor mats, headliner penetrating the structure of their material. Also ozone molecules are able to penetrate the structure of the material, thus effectively remove odors. Ozone, as opposed to air freshener does not mask the odors but physically removes them.