Your car’s ventilation system is in full operation throughout all seasons. Whether you are heating or cooling, air is being pulled in from the outside or recirculating inside the vehicles cabin. The components of the ventilation system are the blower fan, the evaporator, and the heater core. The evaporator unit requires regular cleaning at least once or twice a year.
This is because it is always wet with condensation caused by the fan blowing hot air that is being absorbed by the cooler refrigerant flowing inside the evaporator. This wet environment is a perfect breeding ground for mold spores and bacteria germs. Overtime, these germs can cause foul odors as well as problems for those sensitive to breathing in the contaminated air such as asthma sufferers.
Most have never had their car’s evaporator cleaned. Just like the neglect of changing the oil in your car regularly causes damage to the engine, the neglect of cleaning your car’s evaporator has its consequences other than foul odors. See link below.
Allergic reactions to mold are the most common health effects of mold. Allergic reactions may happen immediately or develop after a period of time following exposure. Both growing mold and mold spores may lead to allergic reactions. Symptoms and signs of mold allergy may include: sneezing, runny nose, coughing, wheezing, watery eyes, redness of the eyes, itchy eyes, skin irritation or rash.
The benefits of a clean ventilation system include:
Removal of foul odors
Wash away mold and bacteria germs
Maximized air volume
Provides a more comfortable environment