What Causes the Foul Odor When Turning on the Car Air Conditioner?

1 Answers
EmilyLee
07/30/25 4:32am
Car air conditioner emits foul odor when turned on: mold growth in the evaporator box and ventilation ducts. The car air conditioning system is a device that cools, heats, ventilates, and purifies the air inside the vehicle cabin. It provides a comfortable environment for passengers, reduces driver fatigue, and enhances driving safety. Functions of car air conditioning: 1. The air conditioner can regulate the cabin temperature to a comfortable level; 2. It can remove humidity from the air; 3. It can intake fresh air, providing ventilation; 4. It can filter the air, removing dust and pollen.
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