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Does Your Air Conditioner Smell? Causes and Solutions for Unpleasant AC Odors

Unpleasant odors from a car’s air conditioning can make every journey uncomfortable. Whether the smell is musty, moldy, or rotten, a foul-smelling air conditioner usually indicates more than just a temporary issue. A common cause is dirt and microorganisms inside the air-conditioning system. The area around the evaporator and cabin air filter is particularly susceptible, as moisture, dust, and organic deposits can accumulate there.