What Causes the Unpleasant Odor When Turning on the Car Air Conditioning?
1 Answers
Car air conditioning emits unpleasant odors due to: excessively dirty air ventilation ducts, a clogged air filter, or a damp and moldy air conditioning evaporator. After prolonged use of a car's air conditioning system, external air passes through the ducts, air filter, and evaporator before entering the vehicle's interior. Over time, the accumulation of dust and debris can block air vents, reducing cooling efficiency. The warm and moist environment of the evaporator becomes a breeding ground for mold and bacteria, resulting in foul odors. Car air conditioning refers to the air conditioning unit installed in vehicles, which cools, heats, ventilates, and purifies the air inside the cabin. It provides a comfortable environment for passengers, reduces driver fatigue, and enhances driving safety.