5. Breathing problems
Though your car’s AC may be a saving grace while stuck in traffic on a hot day they are the worst offenders for circulating germs and micro-organisms that cause breathing problems. Researchers at Louisiana State Medical Center found eight types of mould living inside 22 out of 25 cars tested. Air conditioners are also known to circulate air-borne diseases such as Legionairre’s Disease, a potentially fatal infectious disease that produces high fever and pneumonia.